We're dividing 128650 by 12 
We want to divide 128650 by 12.

Advancing to step 1:
12 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 12

On to step 2:
If we divide 12 by 12, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 12 away from 12, we end up with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 12

Let's proceed to step 3:
The number 12 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 12

On to step 4:
The number 12 fits into 86 7 times, leaving a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 107.0
Deduct 84 from 86 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 12

Going ahead to step 5:
When dividing 25 by 12, we get 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 1072.0
The remainder is 1 after subtracting 24 from 25.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 12

On to step 6:
When dividing 10 by 12, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 10720.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
If we divide 100 by 12, we get 8 and a remainder of 4.
The next digit of our result is 8. 
Result so far: 10720.8
If we subtract 96 from 100, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
12 goes into 40 3 times with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 10720.83
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The next digit of our result is 3. 
Result so far: 10720.833
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 10720.833 with a remainder of 0.0004.