How to insert a header with page number

In microsoft word...

Click on the INSERT tab
Click on PAGE NUMBER
Click on TOP OF PAGE
Click on PLAIN NUMBER 3, which show the number in the upper right hand corner of the page
Type your last name before the page number (no hyphens or dashes)

Highlight your last name and the number and change the font and size...
Click on HOME
Change font to TIMES NEW ROMAN
Change size to 12

Click on HEADER AND FOOTER TOOLS
Click on CLOSE HEADER AND FOOTER

That's it!