#include <iostream>
#include <string>
#include <string.h>
using namespace std;

int main() {
	// your code goes here
	int rs[2][20001];
	string S;
	int M;
	int MOD=1000000007;
	int ans=0;
	std::cin>>S>>M;
	memset(rs,0,sizeof(rs));
	int last;
	for(int i=0;i<S.size();i++){
		int old=i%2;
		int next=(i+1)%2;
		int num=S[i]-'0';
		memcpy(rs[next],rs[old],sizeof(rs[old]));
		for(int i=0;i<M;i++){
			rs[next][(i*10+num)%M]=(rs[next][(i*10+num)%M]+rs[old][i])%MOD;
		}
		
		if(num==0){
			ans++;
		}else{
			rs[next][num%M]=(rs[next][num%M]+1)%MOD;
		}
		//for(int i=0;i<M;i++){
		//	int sum=0;
			
		//	std::cout<<sum<<" ";
		//}
		//std::cout<<"\n\n";
		last=next;
	}
	ans=(ans+rs[last][0])%MOD;
	
	std::cout<<ans<<"\n";
	return 0;
}