def main(S, M):
    MOD = 10 ** 9 + 7

    remainder = []
    for i in range(0, M):
        remainder.append((
            (i * 10) % M,
            (i * 10 + 1) % M,
            (i * 10 + 2) % M,
            (i * 10 + 3) % M,
            (i * 10 + 4) % M,
            (i * 10 + 5) % M,
            (i * 10 + 6) % M,
            (i * 10 + 7) % M,
            (i * 10 + 8) % M,
            (i * 10 + 9) % M
        ))
    dp = [0] * M
    dp[0] = 1
    zeros = 0
    for s in S:
        nex = [0] * M
        si = int(s)
        for m in range(0, M):
            nex[m] += dp[m]
            if nex[m] >= MOD:
                nex[m] -= MOD

            r = remainder[m][si]
            nex[r] += dp[m]
            if m == 0 and si == 0:
                zeros += 1
                nex[r] -= 1
                if nex[r] < 0:
                    nex[r] += MOD
            if nex[r] >= MOD:
                nex[r] -= MOD
        dp = nex
    print((dp[0] + zeros - 1 + MOD) % MOD)


if __name__ == "__main__":
    S = input()
    M = int(input())
    main(S, M)