Is there a solution for software parallel printing?

Question

Seal

Good day.
There is a task. Print something like 50 thousand pages. There are several laser printers Kyocera FS-1128MFP, about fifty HP LaserJet printers of various models, a couple of Minolta BizHub C20.
The problem is that the software that produces data for printing does not know how to separate them. That is, printing 50,000 pages is possible only at a time and only on one printer.
Well, OK. Let's say that I print all this into some PDF converter (tiff, you need to enter it). In this case - to manually set the printing of page ranges to different printers - the same is not an option because of 50,000 pages.
I haven't found any way to make some software parallelize printing in the form "from 1-1000 to printer 1, from 1001-2000 to printer 2, from 2001...".
Who had such tasks? How (what) did you decide?
Thank you.