We look at the division of 870891 by 28 
We're looking to find how many times 28 goes into 870891.

Going ahead to step 1:
When dividing 8 by 28, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 28

Going ahead to step 2:
When dividing 87 by 28, we get 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 84 away from 87, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 28

On to step 3:
28 goes into 30 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 31.0
Subtract 28 from 30 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 28

On to step 4:
If we divide 28 by 28, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 311.0
If we take 28 away from 28, we end up with 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 28

Moving on to step 5:
The number 28 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 3110.0
Subtract 0 from 9 to get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 28

Let's proceed to step 6:
The number 28 fits into 91 3 times, leaving a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 31103.0
The remainder is 7 after subtracting 84 from 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
The number 28 fits into 70 2 times, leaving a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 31103.2
The remainder is 14 after subtracting 56 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
The number 28 fits into 140 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 31103.25
Subtracting 140 from 140 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.

Going ahead to step 9:
28 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 31103.25
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.

Let's proceed to step 10:
If we divide 0 by 28, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 31103.25
If we subtract 0 from 0, we 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.

Our division results in 31103.25 with a remaining 0.0.