input: Write a python function to divide two numbers without using the division operator.
  assert divide_without_operator(9, 3) == 3
  assert divide_without_operator(10, 3) == 4
  assert divide_without_operator(15, 4) == 4
output: def divide_without_operator(dividend, divisor):
      if divisor == 0:
          raise ValueError("Divisor cannot be zero")
      
      quotient = 0
      sum = 0
      
      while sum + divisor <= dividend:
          sum += divisor
          quotient += 1
          
      return quotient