#include <bits/stdc++.h>
using namespace std;
#define int long long
#define MOD 1000000007

signed main() {
    string S; cin >> S;
    int M; cin >> M;
    int dp[S.size()+1][M];
    
    for (int i=0; i<=S.size(); i++) {
        for (int j=0; j<M; j++) {
            dp[i][j] = 0;
        }
    }
    
    for (int i=0; i<S.size(); i++) {
        for (int j=0; j<M; j++) {
            dp[i+1][j] = dp[i][j];
        }
        
        int n = S[i]-'0';
        
        if (n!=0) {
            dp[i+1][n%M] += 1;
            dp[i+1][n%M] %= MOD;
        }
        
        for (int j=0; j<M; j++) {
            dp[i+1][(10*j+n)%M] += dp[i][j];
            dp[i+1][(10*j+n)%M] %= MOD;
        }
    }
    
    int ans = dp[S.size()][0];
    
    for (int i=0; i<=S.size(); i++) {
        if (S[i]=='0') {
            ans++;
            ans %= MOD;
        }
    }
    
    cout << ans << endl;
}