(36 ÷ 12) x (-5 ÷ 0)
= (3) x (-5 ÷ 0)
As we know that any number when divided by 0 becomes not-defined
= (3) x (not defined)
Now, any number when multiplied with a not-defined quantity becomes not-defined.
Therfore, the final product of the question is 'not-defined'.