This is the 11488th most frequent Russian word.
долями
"Долями" means "in shares" or "in parts."
In this context, "долями" is used to describe splitting something into shares or portions.
Мы должны поделить прибыль долями.
We must divide the profit into shares.
Here, "долями" indicates that the apartment was divided into portions distributed among the heirs.
Квартира была продана долями каждому из наследников.
The apartment was sold in shares to each of the heirs.
In this sentence, "долями" refers to splitting the cake into equal portions for distribution.