参考答案：

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>

using namespace std;

vector<int> div(vector<int>& A, int b, int& t)
{
    vector<int> C;

    for (int i = 0; i < A.size(); ++i)
    {
        t = t * 10 + A[i];
        C.push_back(t / b);
        t %= b;
    }

    reverse(C.begin(), C.end());
    while (C.size() > 1 && C.back() == 0) C.pop_back();

    return  C;
}
int main()
{
    int b, t = 0;
    string a;
    vector<int>A;

    cin >> a >> b;

    for (int i = 0; i < a.size(); ++i) A.push_back(a[i] - '0');
    vector<int>C = div(A, b, t);
    for (int i = C.size() - 1; i >= 0; --i) cout << C[i];

    cout << endl;
    cout << t << endl;

    return 0;
}