from decimal import ROUND_DOWN, Decimal, Context, setcontext


def main():
    context = Context(prec=70, rounding=ROUND_DOWN)
    setcontext(context)
    A, B = map(int, input().split())
    result = Decimal(A) / Decimal(B)
    result.quantize(Decimal("." + "0"*49 + "1"))
    print(f"{result:.50f}")


if __name__ == "__main__":
    main()