fn read() -> (Vec<u8>, usize) {
    let mut s = String::new();
    use std::io::*;
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut it = s.trim().split_whitespace();
    let s: Vec<u8> = it.next().unwrap().bytes().collect();
    (s, it.next().unwrap().parse().unwrap())
}

fn main() {
    let (s, m) = read();
    const MOD: u64 = 1_000_000_007;
    let mut ans = 0;
    let mut dp = vec![0; m];
    for k in s {
        let k = (k - b'0') as usize;
        let mut next = vec![0; m];
        for (i, dp) in dp.iter().enumerate() {
            next[(10 * i + k) % m] += *dp;
        }
        if k > 0 {
            next[k % m] += 1;
        }
        ans += next[0] + (k == 0) as u64;
        for (next, dp) in next.iter_mut().zip(dp.iter()) {
            *next += *dp;
        }
        dp = next;
        dp.iter_mut().for_each(|p| *p %= MOD);
    }
    ans %= MOD;
    println!("{}", ans);
}