s = input()
m = int(input())
MOD = 10**9+7
dp = [0]*m
dp[0] = 1
for i in s:
    i = int(i)
    ndp = dp[:]
    for j in range(m):
        nj = (j*10+i)%m
        ndp[nj] += dp[j]
        ndp[nj] %= MOD
    if i == 0: ndp[0] -= 1
    dp = ndp
print((dp[0]+s.count("0")-1)%MOD)