Dividing long ones are practically the same. take 100/5. 5 cannot go into 1 so we move to the next digit, so 10. 5 can go into 10 twice so we put a 2 there. Now we go to the next digit which is 0. 5 can go into 0 0 times. So we put a 0 in that place holder. So the answer is 20. You can do the same with even bigger numbers. Just do not overthink it. You can do it! Hope this helps :)
The answer is 12 cards because you convert the denominator to 16 then then the numerator is 12 so that is how many cards he can write in 3/4 of an hour.
