"""
6 / 2 = 3 (remainder: 0)
3 / 2 = 1 (remainder: 1)
1 / 2 = 0 (remainder: 1)
List of remainders: 0, 1, 1.
Reversed is 1, 1, 0, which is also the binary repres. of 6: 110
"""

n = 39
remainders = []
while n > 0:
    remainder = n % 2  # remainder of division by 2
    remainders.append(remainder)  # we keep track of remainders
    n //= 2  # we divide n by 2

remainders.reverse()
print(remainders)