#include <iostream>
#include <cstring>
using namespace std;
long long dp[2][20001];
int main(){
   string s;
   int M;
   cin >> s >> M;
   long long ans=0;
   int mod=1000000007;
   int size = s.size();
   memset(dp,0,sizeof(dp));
   for( int i = 0 ; i < size; i++ ){
      for( int m=0 ; m <M; m++ ){
         dp[1-i%2][m]=0;
      }
      if( s[i]=='0' ){
         ans += 1;
      }
      else{
         dp[1-i%2][(s[i]-'0')%M]+=1;
      }
      for( int m = 0 ; m < M; m++ ){
         int n = (m*10+s[i]-'0')%M;
         dp[1-i%2][m]+=dp[i%2][m];
         dp[1-i%2][m]%=mod;
         dp[1-i%2][n]+=dp[i%2][m];
         dp[1-i%2][n]%=mod;
      }
      //for( int m=0; m<M; m++){
      //   cout << i+1<<","<<m<<": "<<dp[1-i%2][m]<<endl;
      //}
   }
   cout << (ans+dp[size%2][0])%mod << endl;

}