How do I enter the split of a 1099-DIV into TurboTax, both in the estate report and the decedent's final report?

I just received a 1099-DIV and it includes dividends paid both before my mother's death and after her death. How do I enter the split into TurboTax, both in the estate report and the decedent's final report? Do I also need to issue a 1099 from the decedent to the estate for the portion that was paid after death?