title: xcode format numbers with spaces
body: <p>How can i convert price's in format like:</p>
  
  <p>from this</p>
  
  <blockquote>
    <p>1000000</p>
  </blockquote>
  
  <p>to this</p>
  
  <blockquote>
    <p>1 000 000</p>
  </blockquote>
  
  <p>?</p>
  
  <p>Thanks.</p>