The number of syllables in a fictional name can vary greatly. It could be as few as one or as many as five or more. It often depends on the style and genre of the story, as well as the desired effect on the reader.
Well, 'novel' has two syllables. You can break it down as 'no' and 'vel'. Usually, when we say the word, it's clear that there are two distinct parts of pronunciation.
Each Chinese character takes up two characters, so one Chinese character takes up four characters.
A 100000-word book contains about 2500 Chinese characters, so the total space it takes up is about 2500 * 4 = 100000 characters.
Therefore, a 100000-word book would take up about 100000 words.
The way to divide 'fiction' into syllables is by listening to how it's pronounced. You'll find that it splits as 'fic-tion'. It's not too complicated once you get the hang of it.