new_contents: def helper(m):
      if m < 10:
          return (m, 0)
      count = 1
      k = m//10
      k -= 2 * (m % 10)
      if k > 100:
          a = helper(k)
          count += a[1]
          k = a[0]
      return (k, count)
          
  
  def seven(m):
      return helper(m)
      # your code
  
subject: Create divisibleBySeven.py