Automatically Paginate Posts
Add to ListAutomatically paginate WordPress content by inserting the <!--nextpage-->
Quicktag at intervals controlled by plugin’s settings.
Option is provided to control which post types are automatically paginated (default is the “Post” post type). Supports any public custom post types (non-public types are supported via the autopaging_post_types
filter).
Option is also provided to specify how many pages content should be broken out over, or how many words should be included per page.