I get work through my website and through a writers' brokerage, where I have to compete against other writers to get the work. I have a few things going for me, also: native speaker, advanced degree in creative writing, my grammar and punctuation are excellent, and I understand SEO writing. I also research carefully and spend as much time as I need to write a piece. If the client wants an article of at least 450 to 500 words, and I see that it requires 700 to adequately address the topic without being wordy or sloppy, that's what I do. No one has ever complained to me that I went over the minimum word count.
In writing forums, I've seen plenty of "writers" brag about writing 2, 3 or 4 articles an hour. But a 500-word article that's very simple usually takes me about 2 hours, and you can see the difference in the final product, which I believe is why I'm often chosen over the 20-minute, stop-at-the-minimum, and don't-bother-to-research-or-proofread writers. Insurance brokers, lawyers, doctors and other professionals don't want crap on their websites. When they see what I can do compared to the guy they hired for $15 last week, guess who they want?