Win10 1809 Cumulative Updates not working due to version being too old

I have a machine that is running Windows 10 v1890 Build 17763.805, which is apparently too old to take the latest cumulative updates (CU), as that CU doesn't even recognize that old a version/the pre-reqs aren't present. Is there any way to tell which CU jumps I can make without getting the following error: This update is not applicable to your computer. I would like to avoid having to download each and every monthly CU from .805 forward. Thank you for your time.

Question by AA27CXP on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.