#pragma GCC optimize ("O3")
#pragma GCC target ("avx")

#include <bits/stdc++.h>
using namespace std;

const int mod = 1e9 + 7;

char S[10001];
int M, dp0[20000], dp1[20000];

void upd(int &x, int y) {
    x += y;
    if (x >= mod) x -= mod;
}

int main() {
    scanf("%s %d", S, &M);
    int n = strlen(S), d = 10 % M;
    for (int i = 0; i < n; i++) S[i] -= '0';
    for (int i = 0; i < n; i++) {
        memcpy(dp1, dp0, sizeof(dp1));
        if (S[i] != 0) dp0[S[i] % M]++;
        short k = S[i] % M;
        for (int j = 0; j < M; j++) {
            upd(dp0[k], dp1[j]);
            k += d;
            if (k >= M) k -= M;
        }
    }
    dp0[0] += count(S, S + n, 0);
    cout << dp0[0] % mod << endl;
}