I write short rough drafts. 65,000/70,000 words give or take. I write fast, getting the rough draft down in a few weeks, all the dialogue and scenes that are already in my head. If it's not coming to me, I skip over it and continue. I don't like to stop and think about whatever it is that's not coming. So in those places, I put notes in the comments of Track Changes. Research this. More description. Why is she doing this? He needs to get pissed and let her have it. And a lot of other stuff.
When I got that skeleton-story existing in my head complete, then I go back. This is the fun part. Now I have a playground in which to play. I love to look at a page and figure out how to make it better, what things I can flesh out, mold, and shape, and really get into. I love reading the notes and taking things one step further. This is where I dig deep, work on internal motivations, reasons, main and sub plots and relationships. I'm a crafter. A weaver. I'll make several passes on the manuscript, and eventually, almost always, I come in between 90,000 to 100,000 words. It just ends up that way.
Some writers naturally write longer rough drafts. They flesh out everything as they go from the very beginning. Some go over word count and then cut. Their process is right for them. The creative mind and the creative process is unique, in some way, for each person. And there's no wrong way to do it. I love my process. This is how I write, and it works for me. So, how do you write?