How does integer division work in C++?

1#include <iostream>
2
3int main() {
4  std::cout << 7 / 3;   // Outputs 2
5  std::cout << ", ";
6  std::cout << 10 / 3;  // Outputs 3
7}

1#include <iostream>
2
3int main() {
4  // 7 / 3 has a remainder of 1
5  std::cout << 7 % 3;
6
7  std::cout << ", ";
8
9  // 10 / 3 has a remainder of 1
10  std::cout << 10 % 3;
11}

1#include <iostream>
2
3int main() {
4  std::cout << 7.0 / 3;  // Outputs 2.33333
5
6  std::cout << ", ";
7
8  std::cout << 7 / 3.0;  // Also outputs 2.33333
9}