If you use Microsoft Data Reports, there is an option that allows you to autmatically drop and drag a field which contains either page totals/ or the current page being displayed.
1, When in design time at report view, right click and select which field you would like to add to the page, ex CURRENT PAGE OR TOTAL PAGES or BOTH
2, Alternatively you can also add this statement to the end of a data caption %p this shows the current page or %P This shows the how many pages are in the report.