title: Remove a digit from a number(integer) in python
body: <p>For all indices, i am required to remove that place's Digit.
  An integer a, converting it to String, i.e. S.
  And there after iterate through the length of string, </p>
  
  <pre><code>for i in range(len(S)):
      new =S[:i]+S[i+1:]
  </code></pre>
  
  <p>Is there any more efficient way to remove the digit from integer?</p>