We're dividing 640824 by 28 
We're looking to find how many times 28 goes into 640824.

Let's proceed to step 1:
28 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 28

On to step 2:
28 can be fit into 64 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 56 from 64 and we're left with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 28

Advancing to step 3:
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: 22.0
Deduct 56 from 80 and we're left with 24.
Bring next digit (8) of the dividend behind the 24 and repeat the process: 248 / 28

Advancing to step 4:
248 divided by 28 is 8 with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 228.0
Subtracting 224 from 248 leaves us with 24.
Fetch the next digit (2) from the dividend, attach it to 24 and continue: 242 / 28

Step 5:
The number 28 fits into 242 8 times, leaving a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 2288.0
Subtracting 224 from 242 leaves us with 18.
Grab the next digit (4) from the dividend, add it to 18, then carry on: 184 / 28

Moving on to step 6:
The number 28 fits into 184 6 times, leaving a remainder of 16.
The next digit of our result is 6. 
Result so far: 22886.0
Subtract 168 from 184 to get 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 7:
The number 28 fits into 160 5 times, leaving a remainder of 20.
The next digit of our result is 5. 
Result so far: 22886.5
If we take 140 away from 160, we end up 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.

Step 8:
28 can be fit into 200 7 times, resulting in a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 22886.57
The remainder is 4 after subtracting 196 from 200.
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:
40 divided by 28 is 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 22886.571
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.

Advancing to step 10:
The number 28 fits into 120 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 22886.5714
Subtract 112 from 120 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
When dividing 80 by 28, we get 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 22886.57142
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.

Let's proceed to step 12:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 22886.571428
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.

Going ahead to step 13:
28 goes into 160 5 times with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 22886.5714285
Subtracting 140 from 160 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.

Advancing to step 14:
When dividing 200 by 28, we get 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 22886.57142857
Subtracting 196 from 200 leaves us 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.

Our division results in 22886.57142857 with a remaining 4e-09.