He worked some pretty long hours too, with his friend "Charlie" to keep him going. I doubt that 40+ movie and TV productions in 13 years can ever be beat in the modern era, certainly not without that level of excess.
"The trouble is most people are twats or cunts. Or both."

For Fassbinder, it was a long shoot. But then, it was 15 1/2 hours. 156 days is remarkable considering the length of the miniseries.
Bergman shot the miniseries Scenes from a Marriage in 30 days. It ran 5 hours.
When Fassbinder first started out, he cranked out ten (!) features in his first two years as a filmmaker.
He shot The Bitter Tears of Petra von Kant in 10 days.
Most directors can barely manage one film every 2-3 years. Fassbinder could crank one out in a matter of weeks (and often did).

We are talking about Fassbinder here though That's a remarkably long shoot by his standards.
He made 35 features in 13 years. Astounding production rate.