I must admit that I learnt to do long division when Australia was still using pounds, shillings and pence.
Now, pounds were in base 10, shillings in base 20 and pence in base 12.
In order to do a long division, say divide 3 pounds, 15 shillings and 7 pence by 5 entailed --
- doing a division in base 10
- taking the remainder, converting it to base 20 and add to the shillings
- doing a division in base 20
- taking the remainder, converting it to base 12 and add to the pence
- doing a division in base 12
- remembering that all divisions were integer, so there would usually be some pence left over.
- unless ha'pennies and farthings were involved...
No wonder that when it came to learning about different bases (16, 8, 2, 23, etc) in high school, it was a doddle.
Unfortunately, I was taught so well that those brain cells are still taken up knowing how to do multiple-base long-division. In black ink, with no corrections.