870463 ÷ 28 
Our goal is to divide 870463 by 28.

On to step 1:
If we divide 8 by 28, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 28

Step 2:
When dividing 87 by 28, we get 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
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

Step 3:
30 divided by 28 is 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
The remainder is 2 after subtracting 28 from 30.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 28

Advancing to step 4:
24 divided by 28 is 0 with a remainder of 24.
The next digit of our result is 0. 
Result so far: 310.0
Deduct 0 from 24 and we're left with 24.
Include the next digit (6) from the dividend after 24, then repeat: 246 / 28

On to step 5:
246 divided by 28 is 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 3108.0
If we subtract 224 from 246, we get 22.
Grab the next digit (3) from the dividend, add it to 22, then carry on: 223 / 28

Advancing to step 6:
When dividing 223 by 28, we get 7 with a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 31087.0
If we take 196 away from 223, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 7:
If we divide 270 by 28, we get 9 and a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 31087.9
Subtract 252 from 270 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 8:
The number 28 fits into 180 6 times, leaving a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 31087.96
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
When dividing 120 by 28, we get 4 with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 31087.964
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.

On to step 10:
If we divide 80 by 28, we get 2 and a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 31087.9642
Subtracting 56 from 80 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 31087.96428
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.

On to step 12:
When dividing 160 by 28, we get 5 with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 31087.964285
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.

Going ahead to step 13:
When dividing 200 by 28, we get 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 31087.9642857
Subtract 196 from 200 to 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.

On to step 14:
When dividing 40 by 28, we get 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 31087.96428571
Deduct 28 from 40 and we're left with 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 final result is 31087.96428571 with a remainder of 1.2e-08.