639364 divided by 28 
We want to figure out the number of times 639364 can be divided by 28.

Advancing to step 1:
6 divided by 28 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 28

Going ahead to step 2:
28 goes into 63 2 times with a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 56 from 63 leaves us with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 28

Advancing to step 3:
The number 28 fits into 79 2 times, leaving a remainder of 23.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
If we subtract 56 from 79, we get 23.
Grab the next digit (3) from the dividend, add it to 23, then carry on: 233 / 28

Let's proceed to step 4:
28 goes into 233 8 times with a remainder of 9.
Put 8 as the next digit of the answer. 
Result so far: 228.0
Subtract 224 from 233 to get 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 28

Going ahead to step 5:
96 divided by 28 is 3 with a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 2283.0
If we take 84 away from 96, we end up with 12.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 28

On to step 6:
If we divide 124 by 28, we get 4 and a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 22834.0
If we subtract 112 from 124, 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.

Step 7:
When dividing 120 by 28, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 22834.4
If we subtract 112 from 120, we 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.

Advancing to step 8:
28 can be fit into 80 2 times, resulting in a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 22834.42
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 9:
240 divided by 28 is 8 with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 22834.428
If we subtract 224 from 240, we 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.

Moving on to step 10:
The number 28 fits into 160 5 times, leaving a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 22834.4285
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.

Going ahead to step 11:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 22834.42857
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.

On to step 12:
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: 22834.428571
If we take 28 away from 40, we end up 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.

Advancing to step 13:
If we divide 120 by 28, we get 4 and a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 22834.4285714
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.

Going ahead to step 14:
80 divided by 28 is 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 22834.42857142
If we take 56 away from 80, we end up 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.

The quotient of the division is 22834.42857142, and the remainder is 2.4e-08.