How to insert page break?

Hi. So I am working on a page on my blog. I’m afraid that the page might be too long and the users might find it tough to scroll all the way down. So I want to add a page break.

It should be just a simple one that says – Page 1 2 3, etc. Is there a plugin that does so? Or each time I have to enter a certain code? I am very bad at programming languages, so I won’t understand a thing. Please give me the direct code that I can paste.

The blog I need help with is https://www.clubpenguincheatszone.com

Your help is appreciated.