Let's divide 12155 by 28
Our goal is to divide 12155 by 28.

Advancing to step 1:
28 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
If we take 0 away from 1, we end up with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 28

Step 2:
If we divide 12 by 28, we get 0 and a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 28

Moving on to step 3:
28 goes into 121 4 times with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 112 away from 121, we end up with 9.
Include the next digit (5) from the dividend after 9, then repeat: 95 / 28

On to step 4:
If we divide 95 by 28, we get 3 and a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
The remainder is 11 after subtracting 84 from 95.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 28

On to step 5:
115 divided by 28 is 4 with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 434.0
If we subtract 112 from 115, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 6:
28 goes into 30 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 434.1
The remainder is 2 after subtracting 28 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
The number 28 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 434.1
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
If we divide 200 by 28, we get 7 and a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 434.107
Deduct 196 from 200 and we're left 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.

Step 9:
The number 28 fits into 40 1 times, leaving a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 434.1071
If we subtract 28 from 40, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
28 can be fit into 120 4 times, resulting in a remainder of 8.
The next digit of our result is 4. 
Result so far: 434.10714
Subtracting 112 from 120 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
The number 28 fits into 80 2 times, leaving a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 434.107142
If we subtract 56 from 80, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 12:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 434.1071428
Deduct 224 from 240 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
If we divide 160 by 28, we get 5 and a remainder of 20.
The next digit of our result is 5. 
Result so far: 434.10714285
Deduct 140 from 160 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 434.10714285 with a remaining 2e-08.