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

#define int long long
#define MOD 1000000007

signed main(){
    string s;
    int m;
    cin >> s >> m;
    int n = s.size();

    int dp[20000] = {};

    int ans = 0;
    for(int i = 0;i < n;i++){
        int dp2[20000];
        memcpy(dp2, dp, sizeof(dp));
        for(int j = 0;j < m;j++){
            dp2[(j*10+(s[i]-'0'))%m] += dp[j]; 
            dp2[(j*10+(s[i]-'0'))%m] %= MOD; 
        }
        if(s[i] != '0'){
            dp2[(s[i]-'0')%m]++; 
            dp2[(s[i]-'0')%m]%=MOD; 
        }else{
            ans++;
        }

        memcpy(dp, dp2, sizeof(dp));
    }

    cout << (dp[0] + ans)%MOD << endl;
    return 0;
}