@Dominions Son
The popular myth that Dickens's novels are all so long because he was "paid by the word" is not really accurate. Dickens was not paid by the word. Rather, he was paid by installment.
And I included many examples. And while that is correct, it is also not.
The installments were typically of a set length, as they had to fit into a segment of the broadsheet. And when a portion is dedicated to repeated descriptions and over minute details, it lets an author pad the hell out of the story, and at the same time not progressing it very far.
Dickens wrote one way, but another was Alexandre Dumas pere, who was often called the "Master of the Serial". The Count of Monte Cristo was published in 139 chapters from August 1844 to January 1846. And this was an international hit, being published for the first time in English from 1845-1856. His last and unfinished work was The Knight of Sainte-Hermine, serialized from 1869-1870. And comes in at over 900 pages (the entire Lord of the Rings series is 1,137 pages).
And Dumas was known for writing the most pedantric novels of the era, as were many other serial writers. Not unlike Tolkien later, going on for page after page about things that would never matter in the story. But doing so let them cut a single chapter of story progression into 2 or 3 chapters.
Stephen Brust even famously famously among Fantasy-DF writers mimicked Sumas pere's style in his Khaavren Romances. With "The Phoneix Guards" emulating "The Three Musketeers", "Five Hundred Years After" emulating "Twenty Years After", and the final three chapters "The Viscount of Adrilankha" emulating "The Vicomte de Bragelonne".
And tongue in cheek tossing barbs at the writing style, going into almost painful detail about things like the texture of a fabric, or long flowering speeches and repeated conversations over and over again.
[quote]Men have invented various names in which to measure distance, and have a certain pleasure in assigning units of one to the other, it is the sense that so many inches to the spans, and so many spans to the league; in the sense that a league in the Sorannah is almost two leagues within the ancient confines of Seawall, that is, within the barony that once held the city of Dragaera, and, at the time of which we have the honor to write, still held a portion of it; yet. for all of this measurement, it is understood by those who travel and by those who listen to travelers that the meaningful unit by which distance can be measured is time.[/quote]
This is the kind of thing that Dumas pere was famous for, and which often would cut segments that he wrote in that style down dramatically. Most modern translations come in at around 400 pages, significantly less than the over 600 pages of the original unabridged version.
Remember, these authors generally had contracts to release the chapters weekly for a year or more. And they were given how much space was reserved for each chapter, and they had to drag out the story for that entire time. So while technically he was not paid "per word", he was paid for example in Pickwick to produce roughly two chapters a month for 19 months, each being of a set length. In total over 800 pages.
And if a chapter is coming out short on word count, simply throw in more padding.