We divide 639995 by 28
We want to figure out the number of times 639995 can be divided by 28.

Moving on to step 1:
When dividing 6 by 28, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 28

Step 2:
If we divide 63 by 28, we get 2 and a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 56 from 63, we get 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 28

On to step 3:
28 can be fit into 79 2 times, resulting in a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 22.0
The remainder is 23 after subtracting 56 from 79.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 28

Step 4:
If we divide 239 by 28, we get 8 and a remainder of 15.
Write down 8 as next digit of the result. 
Result so far: 228.0
The remainder is 15 after subtracting 224 from 239.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 28

On to step 5:
28 goes into 159 5 times with a remainder of 19.
Use 5 as the next digit of our solution. 
Result so far: 2285.0
If we take 140 away from 159, we end up with 19.
Grab the next digit (5) from the dividend, add it to 19, then carry on: 195 / 28

Let's proceed to step 6:
195 divided by 28 is 6 with a remainder of 27.
Put 6 as the next digit of the answer. 
Result so far: 22856.0
The remainder is 27 after subtracting 168 from 195.
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:
When dividing 270 by 28, we get 9 with a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 22856.9
Subtracting 252 from 270 leaves us 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.

On to step 8:
180 divided by 28 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 22856.96
Subtract 168 from 180 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.

Moving on 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: 22856.964
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.

Going ahead to step 10:
If we divide 80 by 28, we get 2 and a remainder of 24.
The next digit of our result is 2. 
Result so far: 22856.9642
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.

Going ahead to step 11:
When dividing 240 by 28, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 22856.96428
Subtract 224 from 240 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.

On to step 12:
When dividing 160 by 28, we get 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 22856.964285
Deduct 140 from 160 and we're left 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.

Let's proceed to step 13:
28 can be fit into 200 7 times, resulting in a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 22856.9642857
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.

Let's proceed to step 14:
28 can be fit into 40 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 22856.96428571
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.

Our division results in 22856.96428571 with a remaining 1.2e-08.