title: Padding zeros in front of number prefixed by alphabetic string
body: <p>I have a String, i.e. AB1234. I am trying to create a method I can pass the string into that will always padd zeros in front of the integers to create a 10 digit string.</p>
  
  <p>Some examples:</p>
  
  <p><code>padZero("AB1234")</code> returns "AB00001234" </p>
  
  <p><code>padZero("CD001234")</code> returns "CD00001234"</p>
  
  <p><code>padZero("ABCDEF858")</code> returns "ABCDEF0858"</p>
  
  <p>Is there a simple way to do this without having tons of corner cases you have to try to catch? Assume the case of a String greater than ten digits being passed into this method is caught before the method call.</p>