How to create multiple consecutive pages

A bit like this https://invisioncommunity.com/news/

In fact exactly like that?

I started to look at our pages – and I can't find how to limit the length of the page and then so that it automatically generates onto page 2, page 3, et cetera.

I'm bringing a load of RSS feeds from various places – but the page is getting very long.

Explanation in simple language please!