title: Cyclic Redundancy Check - Message starting with 0
body: <p>I'm wondering how to encode a message starting with 0.
  ie. Given
  code: 10111
  message: 001011110
  I've tried divide this multiple times but am not sure if I can ignore the first two zeros of the message as they correspond to x^7 and x^8...
  Any help is greatly appreciated.</p>