Business & farm

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.