title: How to add a white space between two numbers -Regex.Replace()
body: <p>Someone knows how to add a white space between two number when they do not have an space. So I have <code>#,###,##</code> and want <code>#,## #,##</code></p>
  
  <p>I have this:</p>
  
  <pre><code>2.100.000,000,04
  300,450,06
  23,011,87
  54.845,37462.521,21
  </code></pre>
  
  <p>I want this:</p>
  
  <pre><code>2.100.000,00 0,04
  300,45 0,06
  23,01 1,87
  54.845,37 462.521,21
  </code></pre>
  
  <p>In order to see if a replace should occur I did this expression <code>\,([0-9]{3})\,</code> </p>
  
  <p>Thanks for your help.</p>
  
  <p><strong>Update 1</strong></p>
  
  <ul>
  <li>Number format could be <code>#.###.###,##</code> (always with two decimals)</li>
  </ul>