100638 divided by 12 
Let's see how many times 12 fits into 100638.

Going ahead to step 1:
1 divided by 12 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 12

Advancing to step 2:
12 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 10, we end up with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 12

Step 3:
100 divided by 12 is 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 96 from 100 and we're left with 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 12

Going ahead to step 4:
46 divided by 12 is 3 with a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
Subtract 36 from 46 to get 10.
Fetch the next digit (3) from the dividend, attach it to 10 and continue: 103 / 12

Moving on to step 5:
If we divide 103 by 12, we get 8 and a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 838.0
If we take 96 away from 103, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 12

Step 6:
If we divide 78 by 12, we get 6 and a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 8386.0
If we subtract 72 from 78, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
If we divide 60 by 12, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 8386.5
If we take 60 away from 60, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
0 divided by 12 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8386.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8386.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 8386.5, and the remainder is 0.0.