After the "0" at the end of a number is removed, the first question is equal to B. It is known that number A is 10 times that of number B, so 286/(10+1) = number B.
The quotient of dividing two numbers is 12. The remainder is 2, and 12 divisor plus 2 equals dividend. So the addition of dividend, divisor, quotient and remainder is actually (12 divisor plus 2)+ divisor+12+2=328, so the divisor is 24.