Using an Abacus/Division

Division is practically the opposite process of multiplication. Division of a given number by a desired number involves the subtraction of the given number by the desired number a certain amount of times, and this certain amount of times the answer.

To divide:
 * 1) display original number
 * 2) think of desired number
 * 3) subtract original number by desired number
 * 4) add a bead to a separated row (recommended two above highest digit of original number), this is the counter row
 * 5) Repeat steps 3-4 until original number is less than desired number
 * 6) multiply original number by 10 and repeat steps 3-4 while adding one bead one digit less than counter.

Example: (15/4) 15=15     Counter 000-0|-0  0000-|-0 0000-|0-   0000-|-0• 15-4=11    1 000-0|-0   000-0|-0 000-0|-0   0000-|-0•

11-4=7    2 0000-|-0   00-00|-0 00-00|0-   0000-|-0• 7-4=3      3 0000-|-0   0-000|-0 0-000|-0   0000-|-0•

30-4=26   3.1 00-00|-0   0-000|-0 000-0|0-   000-0|-0• ... (6 more times) 6-4=2     3.7 0000-|-0   0-000|-0 00-00|-0   00-00|0-•

20-4=16   3.71 000-0|-0   0-000|-0 000-0|0-   00-00|0-•            000-0|-0 ... (4 more times) 4-4=0     3.75 0000-|-0   0-000|-0 0000-|-0   00-00|0-            0000-|0- Thus (15/4)=3.75