I am not pretty clear about your query. However, you want to have blank in cell instead of Div/0 error.
You can use the formula mentioned below
suppose A1 has numerator values and B1 has denominator value which does not exist or is zero. So you have Div/0 error in C1 which has formula A1/B1
=IF(ISERROR(A1/B1), “”, A1/B1)
The formula will return blank is there is any error while dividing.
If this resolve your issue. Do let me know