Custom Title on Multi-page posts

There’s all sorts of options. You could paginate a single post with the <!--nextpage--> tag (would require a custom template to handle unique page titling though). You could write 10 or 11 posts and manually link each one. You could make a page template that pulls in content organized in either of the previous ways so that the links are handled automatically in a way different than that of your theme. You could create a custom post type or extend your theme’s post formats where the creation of such articles are semi automated, so the author can focus on content and not making links.

Some of these take more time when creating an article, others less, but require up front development time. Whether the development time is worth it depends on how many such articles will be written. One? Not worth developing something. Ten? Maybe worth it. Hundred? Definitely worth it.