using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Text; class TEST{ static void Main(){ Sol mySol =new Sol(); mySol.Solve(); } } class Sol{ public void Solve(){ int N=S.Length; int[] dp=new int[M]; int mod=(int)1e9+7; for(int i=0;i=mod)nxt[nk]-=mod; } if(S[i]!='0'){ int nk=(int)(S[i]-'0')%M; nxt[nk]+=1;if(nxt[nk]>=mod)nxt[nk]-=mod; } dp=nxt; } int zero=S.Count(x=>x=='0'); Console.WriteLine((dp[0]+zero)%mod); } String S; int M; public Sol(){ S=rs(); M=ri(); } static String rs(){return Console.ReadLine();} static int ri(){return int.Parse(Console.ReadLine());} static long rl(){return long.Parse(Console.ReadLine());} static double rd(){return double.Parse(Console.ReadLine());} static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);} static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));} static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));} static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));} }