#!/usr/bin/env python3.8
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
MOD = 10**9 + 7

# %%
S = [int(x) - ord('0') for x in readline().rstrip()]
M = int(read())

# %%
dp = [0] * M
for x in S:
    newdp = [0] * M
    if x != 0:
        newdp[x % M] += 1
    for i in range(M):
        newdp[(10 * i + x) % M] += dp[i]
    for i in range(M):
        newdp[i] += dp[i]
        newdp[i] %= MOD
    dp = newdp

# %%
answer = sum(x == 0 for x in S) + dp[0]
print(answer % MOD)