That’s a bit easier on the eyes.
The key here are the “pages.”
Now when I say pages here, I don’t mean that you have to manually divide your big page, and click Add New page for each section, then go back and add those numerical links one by one. That would be tortuous.
As usual, I’m telling you this stuff to lead into a pretty easy fix. WordPress has a built in feature that allows you to break a single post or page into sub-pages.