title: Allow Program To Use More CPU
body: <p>I've a console application in C#. I've a heavy process in my app after running it takes to much time but CPU usage of program is 7%! How can i allow my app to use at least 80% of CPU usage ?</p>
  
  <pre><code>double num = a milion digit int
  
  while (num != 0)
  {
      sum += num % 10;
      num /= 10;
  }
  </code></pre>