from collections.abc import Iterable


def accum_dp(xs: Iterable, f, op, e, init: dict, *, is_reset=True):
    dp = init.copy()
    for x in xs:
        pp = {} if is_reset else dp.copy()
        dp, pp = pp, dp
        for fm_key, fm_val in pp.items():
            for to_key, to_val in f(fm_key, fm_val, x):
                dp[to_key] = op(dp.get(to_key, e), to_val)

    return dp


def f(k, v, x):
    global ans
    b, m = k  # (開始ノードか, mod)

    if b:
        if x > 0:
            if x % M == 0:
                ans += 1
            yield (False, x % M), v
    else:
        nm = (10*m + x) % M
        if nm == 0:
            ans += v
        yield (False, nm), v


def op(a, b):
    return (a + b) % MOD


def digit_dp():
    digits = [int(c) for c in S]

    init = {(True, 0): 1}
    _ = accum_dp(digits, f, op, 0, init, is_reset=False)


MOD = 10**9 + 7
S = input()
M = int(input())

ans = 0
digit_dp()

ans += S.count('0')
print(ans)