// yukicoder: No.372 It's automatic
// 2019.9.20 bal4u

#include <stdio.h>
#include <string.h>

#if 1
#define gc() getchar_unlocked()
#else
#define gc() getchar()
#endif

int in() {   // 非負整数の入力
	int n = 0, c = gc();
	do n = 10 * n + (c & 0xf); while ((c = gc()) >= '0');
	return n;
}

int ins(char *s) { // 文字列の入力　スペース以下の文字で入力終了
	char *p = s;
	do *s = gc();
	while (*s++ > ' ');
	*--s = 0;
	return s-p;
}

#define MOD 1000000007
char S[10003]; int w;
int _cur[20002], _nxt[20002];

int main()
{
	int i, j, k, c, M, ans;
	int *cur, *nxt, *t;

	w = ins(S), M = in();
	ans = 0, cur = _cur, nxt = _nxt;
	for (i = 0; i < w; i++) {
		c = S[i] & 0xf, k = c;
		for (j = 0; j < M; j++) {
			nxt[k] += cur[j];
			if (nxt[k] >= MOD) nxt[k] -= MOD;
			k += 10; if (k >= M) k -= M;
		}
		if (c) nxt[c % M]++; else ans++;
		t = cur, cur = nxt, nxt = t;
		memcpy(nxt, cur, sizeof(int)*M);
	}
	ans = (ans + cur[0]) % MOD;
	printf("%d\n", ans);
	return 0;
}