There are many ways. To interpret literally what you write, one would use
Conditional Formatting
Select the cells that contain the error value.
On the Format menu, click Conditional Formatting.
In the box on the left, click Formula Is.
In the box on the right, type =ISERROR(reference), where reference is a
reference to the cell that contains the error value.
Click Format, and then click the Font tab.
Click Format.
In the Color box, select white (or whatever color matches the cell background).
Of course, that formula will hide every error.
If you just want to hide DIV/0 errors, try this formula instead:
=2=ERROR.TYPE(reference)
--ron