To leave these page numbers in the footer and return to the body of your document, click Close Header and Footer or double-click anywhere outside of the header or footer areas. Word adds 'Page X of Y' numbering to the center of the footer.
On the Header & Footer tab, click Footer, and then scroll downward to find and click the style called Semaphore. When you double-click in a header or footer, Word opens that area for editing and displays the Header & Footer tab. With a document open, double-click in the footer area of a page where you want page numbering.