How do i set up a remainder for my program? (C++) Details: i’m trying to set up a program meant for a child and i want a division problem to show remainders. I’ve tried but have no idea how.

Program:
#include
#include
#include
Int main() {

const int MIN_NUM = 1,
MAX_NUM = 99;

int randNum1,
randNum2;

Unsigned seed = time(0);
srand(seed);

randNum1 = (rand()%(MAX_NUM - MIN_NUM + 1) + MIN_NUM);

randNum2 = (rand()%(MAX_NUM - MIN_NUM + 1) + MIN_NUM);

case 'D':
case 'd': {
cout << "\nCool! \nLemme set you up with some DIVISION problems! " << endl;

cout << "\n";
cout << "\n";
cout << "\n " << randNum2 << "\n÷ " << randNum4 << "\n \n";

randNumAnswer = randNum2 / randNum4;

cin >> userAnswer;

if (userAnswer != randNumAnswer) {cout << "\nYou didn't get the right answer but try again. Don't lose hope!\n"; }

else if (userAnswer == randNumAnswer) { cout << "\nAmazing!! You did great!\n";}
break;}
}

return 0;
}