We're dividing 642991 by 28 
Our goal is to divide 642991 by 28.

On to step 1:
When dividing 6 by 28, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 28

Moving on to step 2:
The number 28 fits into 64 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 56 from 64 leaves us with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 28

On to step 3:
The number 28 fits into 82 2 times, leaving a remainder of 26.
The next digit of our result is 2. 
Result so far: 22.0
Subtracting 56 from 82 leaves us with 26.
Append the next digit (9) from the dividend to 26 and continue with: 269 / 28

Advancing to step 4:
28 goes into 269 9 times with a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 229.0
Subtracting 252 from 269 leaves us with 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 28

Step 5:
When dividing 179 by 28, we get 6 with a remainder of 11.
The next digit of our result is 6. 
Result so far: 2296.0
If we subtract 168 from 179, we get 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 28

Going ahead to step 6:
When dividing 111 by 28, we get 3 with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 22963.0
If we subtract 84 from 111, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 7:
If we divide 270 by 28, we get 9 and a remainder of 18.
The next digit of our result is 9. 
Result so far: 22963.9
If we take 252 away from 270, we end up with 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:
When dividing 180 by 28, we get 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 22963.96
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
If we divide 120 by 28, we get 4 and a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 22963.964
Deduct 112 from 120 and we're left 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.

Let's proceed to step 10:
If we divide 80 by 28, we get 2 and a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 22963.9642
Subtract 56 from 80 to 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.

Going ahead to step 11:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 22963.96428
If we take 224 away from 240, we end up 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 12:
If we divide 160 by 28, we get 5 and a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 22963.964285
The remainder is 20 after subtracting 140 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
28 goes into 200 7 times with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 22963.9642857
If we take 196 away from 200, 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.

Advancing to step 14:
The number 28 fits into 40 1 times, leaving a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 22963.96428571
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.

After the division, we end up with 22963.96428571 and a remainder of 1.2e-08.