input: Write a python function to locate numbers in a specified range where each number is divisible by every digit it contains.
  assert divisible_by_digits(1,22)==[1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 22]
  assert divisible_by_digits(1,15)==[1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15]
  assert divisible_by_digits(20,25)==[22, 24]
output: def divisible_by_digits(start, end):
      def is_divisible(number):
          num_str = str(number)
          for char in num_str:
              if char == '0' or number % int(char) != 0:
                  return False
          return True
      
      result = []
      for num in range(start, end + 1):
          if is_divisible(num):
              result.append(num)
      
      return result