import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
    static final int MOD = 1000000007;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        char[] inputs = sc.next().toCharArray();
        int m = sc.nextInt();
        int[] current = new int[m];
        int[] next = new int[m];
        int ans = 0;
        for (char c : inputs) {
            int x = c - '0';
            for (int i = 0; i < m; i++) {
                next[(i * 10 + x) % m] += current[i];
                next[(i * 10 + x) % m] %= MOD;
            }
            if (x > 0) {
                next[x % m]++;
                next[x % m] %= MOD;
            } else {
                ans++;
                ans %= MOD;
            }
            ans += next[0];
            ans %= MOD;
            for (int i = 0; i < m; i++) {
                current[i] += next[i];
                current[i] %= MOD;
            }
            Arrays.fill(next, 0);
        }
        System.out.println(ans);
    }
}
class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}