We divide 640882 by 28
The aim is to understand the frequency of 28 in 640882.

Let's proceed to step 1:
When dividing 6 by 28, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 28

Advancing to step 2:
If we divide 64 by 28, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 56 from 64, we get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 28

On to step 3:
80 divided by 28 is 2 with a remainder of 24.
The next digit of our result is 2. 
Result so far: 22.0
Deduct 56 from 80 and we're left with 24.
Append the next digit (8) from the dividend to 24 and continue with: 248 / 28

Let's proceed to step 4:
28 can be fit into 248 8 times, resulting in a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 228.0
Subtract 224 from 248 to get 24.
Grab the next digit (8) from the dividend, add it to 24, then carry on: 248 / 28

Step 5:
28 can be fit into 248 8 times, resulting in a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 2288.0
If we subtract 224 from 248, we get 24.
Take the next digit (2) from the dividend and append it to 24, then repeat: 242 / 28

Step 6:
28 can be fit into 242 8 times, resulting in a remainder of 18.
The next digit of our result is 8. 
Result so far: 22888.0
Subtracting 224 from 242 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.

Advancing to step 7:
28 can be fit into 180 6 times, resulting in a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 22888.6
If we subtract 168 from 180, 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.

On to step 8:
28 goes into 120 4 times with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 22888.64
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 9:
If we divide 80 by 28, we get 2 and a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 22888.642
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 10:
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: 22888.6428
Subtracting 224 from 240 leaves us 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 11:
28 goes into 160 5 times with a remainder of 20.
The next digit of our result is 5. 
Result so far: 22888.64285
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.

Step 12:
28 can be fit into 200 7 times, resulting in a remainder of 4.
The next digit of our result is 7. 
Result so far: 22888.642857
If we subtract 196 from 200, we 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.

Advancing to step 13:
When dividing 40 by 28, we get 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 22888.6428571
Subtracting 28 from 40 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.

Let's proceed to step 14:
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: 22888.64285714
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 22888.64285714 with a remaining 8e-09.