The eternal struggle of research mathematicians! People think math is just about calculating big numbers, when actual mathematicians are busy proving theorems about abstract spaces, developing new theories, and exploring mathematical structures that have nothing to do with arithmetic.
It's like asking a neurosurgeon to put a band-aid on your paper cut. Sure, they could do it, but that's not exactly utilizing their expertise. Most research mathematicians haven't manually multiplied large numbers since high school - they'd reach for a calculator just like everyone else!