title: Modulo results in "Division by zero" error
body: <p>I am using modulo operator as seen below, but when I run it reports a <code>Division by zero</code> error with assignment to <code>$new</code>. How can I fix this?</p>
  
  <pre><code>$per = 0.2;
  $a = 20;
  $new = $a % $per;
  </code></pre>