title: Convert from Long to a Float Number
body: <p>In my Class I have a attribute, <strong>fileSize</strong>
  The type is <strong>long</strong></p>
  
  <p>I don't want to change to float/double, cause I work with databases and now I can't just edit
  the datatypes (to late)</p>
  
  <p>the filesize is normally in <strong>kB</strong> (Reason why <strong>long</strong>)..
  But once I want to show it in <strong>MB</strong> (that would be, <strong>fileSize / 1024</strong>) -> and I get <em>0</em>, its because the type isn't <strong>float/double</strong>..</p>
  
  <p>How I can solve the problem, so that I get b.E 0.54MB without changing the DataType of <strong>fileSize</strong>?</p>