Did you learn how to do long division in schools? I did, and I wasn't allowed to use calculators on a test until I was in highschool and basic math wasn't what was being taught or evaluated.

I also learned long division in school.

I was allowed to use a calculator from middle school onward, when we were being tested on algebra and beyond and not arithmetic.

Some schools have ridiculous policies. Some don’t. Ymmv. I don’t think that’s changed from when I was in school.