A paginated post can be useful for a long post to make two or more pages out of a single post. This technique is commonly used to serve a different ad on sub pages.
To get started you need to Enable Post Pagination from Admin > Settings > General > Post and enable "Post Pagination".
You can split the post in multiple pages by clicking the page break in the post editor. Simply click on the "Insert Pagebreak Here" and the next modules will split into pages.

Quizier offers different types of pagination that you can change from Admin > Settings > General > Post.