title: Notepad++ Replace regex match for same text plus appending character
body: <p>I have a file with text and numbers with a length of 5 (i.e. <code>12000</code>, <code>11153</code>, etc.). I want to append all of these numbers with a <code>0</code>. So <code>11153</code> becomes <code>111530</code>. Is this possible in Notepad++?</p>
  
  <p>I know I can find all numbers with the following regex: <code>[0-9]{5}</code>, but how can I replace these with the same number, plus an appending <code>0</code>?</p>
  
  <p>In the replacement box I tried the following things:</p>
  
  <ul>
  <li><code>[0-9]{5}0</code> - Which it took literally, so <code>11153</code> was replaced with <code>[0-9]{5}0</code></li>
  <li><code>\10</code>  - I read somewhere that <code>\1</code> would take the match, but it doesn't seem to work. This will replace <code>11153</code> with <code>0</code></li>
  <li>EDIT: <code>\00</code> - Based on this <a href="https://stackoverflow.com/a/19575551/1682559">SO answer</a> I see I need to use <code>\0</code> instead of <code>\1</code>. It still doesn't work though. This will replace <code>11153</code> with  <code></code></li>
  </ul>
  
  <p>So, I've got the feeling I'm close with the <code>\1</code> or <code>\0</code>, but not close enough.</p>