Don't be put off by the name - it might not sound as serious as Long Division, but it's a very effective method.
If you already know Long Division, seeing Chunking might give you a feeling of smug superiority. Yet Chunking is a far more friendly method for learning about dividing, and not nearly as poor a relation to Long Division as some would have you believe.
The music in the video is "Mr Fiddlestick" by Ben Thomas, and is used with permission. I hope to include more about Ben and his music on the site in the near future.