I read a lot of science fiction when I was a kid, and in the eighties and nineties that meant I read a lot of Isaac Asimov. You could say that he was a bit of a creative inspiration for me.
Asimov wrote constantly. The mythos that surrounds him suggests that he got up early, wrote as much as five thousand words until he could write no more, and then got on with his day.
Writing five thousand words per day is a lot. Daily is a lot. But it showed in his work that he was able to produce so much, and a lot of it of great quality to the point that you can still buy fresh printings of his books today.
Infinitely monkeys with infinite typewriters will eventually, by sheer chance, produce Shakespeare, but one guy with dedication and a single typewriter can produce something just as great by force of willpower and effort.