Are you using a TT program ? If so you will enter all the 1099-Div information on the 1099-Div entry screen. Are you not finding this entry screen ?
If you are trying to do this manually then use the 1065 instructions from the IRS or employ a local professional tax pro. And if you have not put the partnership on extension then you are now very late as the return was due 3/15 and the penalties are wracking up monthly.
