The Navigation Pane will open on the left side of the document.

Now hit Browse the pages in your documents icon.

Now you’ve got the option to hop between pages through using the thumbnails.

Navigate Through Long Word Documents Easier Using Thumbnails

sshot-2010-07-15-[22-51-56]

sshot-2010-07-15-[22-52-50]

sshot-2010-07-15-[23-29-06]

sshot-2010-07-15-[23-30-46]