import sys
from math import gcd


def input(): return sys.stdin.readline().rstrip('\n')


def main():
    a, b = map(int, input().split())
    r = a * 10 ** 50 // b
    print(f'{r // 10 ** 50}.{r % 10 ** 50:050}')


if __name__ == '__main__':
    ret = main()
    if ret is not None:
        print(ret)