#include <bits/stdc++.h>

const int mod = 1e9 + 7;
char S[10001];
int M;
int64_t dp0[20000], dp1[20000];

int main() {
    scanf("%s %d", S, &M);
    int n = strlen(S), d = 10 % M;
    int zero = 0;
    for (int i = 0; i < n; i++) S[i] -= '0', zero += S[i] == 0;
    for (int i = 0; i < n; i++) {
        memcpy(dp1, dp0, sizeof(dp1));
        if (S[i] != 0) dp0[S[i] % M]++;
        int k = S[i] % M;
        for (int j = 0; j < M; j++) {
            dp0[k] += dp1[j];
            k += d;
            if (k >= M) k -= M;
        }
        if (i % 16 == 0) for (int j = 0; j < M; j++) dp0[j] %= mod;
    }
    printf("%lld\n", (dp0[0] + zero) % mod);
}