#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
using ll = long long;
using vll = vector<ll>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vvll = vector<vector<ll>>;
using pii = pair<int, int>;
const int inf = 1e9;
const ll md = 1000000007;

int main() {
  string s;
  int m;
  cin>>s>>m;
  int n=s.size();
  vll dp(m,0LL),ndp(m,0LL);
  dp[0]=1LL;ndp[0]=1LL;
  rep(i,n){
    int a=s[i]-'0';
    rep(j,m){
      ndp[(j*10+a)%m]+=dp[j];
      if (j==0 and a==0) ndp[0]-=1;
    }
    rep(j,m) ndp[j]%=md;
    dp=ndp;
  }
  rep(i,n) if(s[i]=='0') dp[0]+=1;
  cout<<dp[0]-1<<endl;
  return 0;
}