9 Division by subtraction (tear-down division)

Problem : 645372 :2758 = 234

Set 645372 (levers 6 -- 1 )
Carriage position 8
One + turn
Cancel setting and multiplier registers
Set 2758 (levers 6 -- 3)
Three -- turns (bell signal)
One + turn
Carriage position 7
Four -- turns (bell signal)
One + turn
Carriage position 6
Five -- turns (bell signal)
One + turn

10 Division by addition (build up division)

Problem : 30336 :237 = 128

Set 237 (levers 3 -- 1 )
Carriage position 8
One + turn
Carriage position 7
Three + turns
Carriage position 6
Two -- turns