UNIQUE METHOD FOR SOLVING SIMPLE DIVISION
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Simple Division is adequately documented in text books, internet and Khan Academy.com. But what is not there is solving simple division sums where zero is involved in dividend ( as shown in example below)
I do not know what algorithms calculator machine use but this method is not found in any documents on internet or textbooks in India.
100

3x0 = 0  
3  301  3x1 =3  
  3  >3x1 = 3  3x2=6 
00

after subtraction bring one digit down i.e. 0  3x3=9  
  00  >3x0 = 0  3x4=12 
001  after subtraction bring one digit down i.e. 1  3x5=15  
  000  >3x0 = 0  3x6=18 
001  Note you should stop dividing when remainder is less than divisor  3x7=21  
3x8=24  
3x9=27 
Division sums are particularly difficult when you have 0 as one of the digit.
To divide such sums first write tables of divisor i.e. here it is 3 from 0 to 9.
Then divide as shown above. Whenever you subtract the value in division you have to
bring one digit of dividend down.
Another division sum with 2 digit divisor.
91678

12x0 = 0  
12  1100145  12x1 =12  
 
108

>12 x 9 = 108  12x2=24 
0020  after subtraction bring one digit down  12x3=36  
  0012  >12 x 1 = 12  12x4=48 
00081  after subtraction bring one digit down  12x5=60  
  00072  > 12 x 6=72  12x6=72 
000094

after subtraction bring one digit down  12x7=84  
  000084  > 12 x 7=84  12x8=96 
0000105

after subtraction bring one digit down  12x9=108  
  0000096  > 12 x 8=96  
0000009

Note you should stop dividing when remainder is less than divisor  