After killing my brain for hours over a trivial issue, I have finally found out how to break down a Word doc and avoid ending up with a single scrolling HTML topic. As obvious as it seems, when importing a prompting window appears where the option Edit Word styles can be chosen. But I just figured out that you need to select your style in paragraph AND tick the box which says pagination.
What was something fairly easy in RH X5, because of the prompting window where we could tick boxes, RH 8 has created this pagination box, which to be honest is not very explicit.
BUT THE BEST PART IS THAT IT WORKS!!!!!!!!
Have a nice day