#ifdef LOCAL111 #else #define NDEBUG #endif #include using namespace std; #define endl '\n' #define ALL(a) (a).begin(),(a).end() #define SZ(a) int((a).size()) #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--) #define REP(i,n) FOR(i,0,n) #define RREP(i,n) for (int i=(n)-1;i>=0;i--) #define RBP(i,a) for(auto& i : a) #ifdef LOCAL111 #define DEBUG(x) cout<<#x<<": "<<(x)< void pite(T a, T b){ for(T ite = a; ite != b; ite++) cout << (ite == a ? "" : " ") << *ite; cout << endl;} typedef pair P; typedef long long int LL; typedef unsigned long long ULL; typedef pair LP; void ios_init(){ //cout.setf(ios::fixed); //cout.precision(12); #ifdef LOCAL111 return; #endif ios::sync_with_stdio(false); cin.tie(0); } const LL mod = 1e9+7; int dp[10010][20010]; int main() { ios_init(); string s; cin >> s; int m; cin >> m; int cnt0 = 0; REP(i,SZ(s)){ if(s[i] == '0'){ cnt0++; FOR(j,0,m){ dp[i+1][j] += dp[i][j]; dp[i+1][j] %= mod; dp[i+1][(j*10)%m] += dp[i][j]; dp[i+1][(j*10)%m] %= mod; } }else{ int n = s[i]-'0'; dp[i+1][n%m]++; REP(j,m){ dp[i+1][j] += dp[i][j]; dp[i+1][j] %= mod; dp[i+1][(j*10+n)%m] += dp[i][j]; dp[i+1][(j*10+n)%m] %= mod; } } } /*REP(i,SZ(s)+1){ pite(dp[i],dp[i]+m); }*/ cout << dp[SZ(s)][0]+cnt0 << endl; return 0; }