import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

from decimal import getcontext, Decimal

getcontext().prec = 100

a,b = map(int,read().split())

x = a * (10 ** 50) // b

x = Decimal(x) / (10 ** 50)

print(str(x))