Attached below is a link to a video explanation of the long division chunking method recorded by Miss Harris:
https://share.icloud.com/photos/09-OzgtgCYg3lOfZcg6U11tLA
Here are some other useful links for long division:
https://www.youtube.com/watch?v=lWJH8qhPDYU
https://www.youtube.com/watch?v=HdU_rf7eMTI&t=93s
https://www.theschoolrun.com/what-is-chunking
https://teachmykids.co.uk/advice_and_tips/teach-ks2-children-division-what-is-the-chunking-method