Wordpress. Page-by-page navigation

Hello, there! You need to make a breakdown of a long static page with the extension .html, so that as a result of its breakdown, new pages of the form 1.html 2.html 3.html, etc. are automatically created. The next page tag is not suitable, because Pages are created as 0.html/2. It is also necessary that the navigation to the newly created pages is displayed at the top and bottom of the broken page and newly created static pages. There is a plugin that counts the number of characters of the post and makes an automatic breakdown.