Let's divide 171891 by 28
We're looking to find how many times 28 goes into 171891.

Going ahead to step 1:
The number 28 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 28

On to step 2:
28 can be fit into 17 0 times, resulting in a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 28

Moving on to step 3:
The number 28 fits into 171 6 times, leaving a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 168 from 171 and we're left with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 28

Going ahead to step 4:
The number 28 fits into 38 1 times, leaving a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 61.0
If we take 28 away from 38, we end up with 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 28

Let's proceed to step 5:
109 divided by 28 is 3 with a remainder of 25.
The next digit of our result is 3. 
Result so far: 613.0
Deduct 84 from 109 and we're left with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 28

Moving on to step 6:
If we divide 251 by 28, we get 8 and a remainder of 27.
Record the quotient 8 as the next digit in the result. 
Result so far: 6138.0
The remainder is 27 after subtracting 224 from 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 7:
28 can be fit into 270 9 times, resulting in a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 6138.9
The remainder is 18 after subtracting 252 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
28 goes into 180 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 6138.96
If we subtract 168 from 180, 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.

Let's proceed to step 9:
The number 28 fits into 120 4 times, leaving a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 6138.964
The remainder is 8 after subtracting 112 from 120.
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 10:
When dividing 80 by 28, we get 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 6138.9642
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.

Moving on to step 11:
If we divide 240 by 28, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 6138.96428
Subtracting 224 from 240 leaves us 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.

Let's proceed to step 12:
160 divided by 28 is 5 with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 6138.964285
Subtract 140 from 160 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
28 goes into 200 7 times with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 6138.9642857
If we subtract 196 from 200, 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.

Going ahead to step 14:
40 divided by 28 is 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 6138.96428571
Subtract 28 from 40 to 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.

The quotient of the division is 6138.96428571, and the remainder is 1.2e-08.