559631 divided by 28 
The aim is to understand the frequency of 28 in 559631.

Let's proceed to step 1:
When dividing 5 by 28, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 28

Advancing to step 2:
If we divide 55 by 28, we get 1 and a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 27 after subtracting 28 from 55.
Grab the next digit (9) from the dividend, add it to 27, then carry on: 279 / 28

Step 3:
When dividing 279 by 28, we get 9 with a remainder of 27.
Use 9 as the next digit of our solution. 
Result so far: 19.0
The remainder is 27 after subtracting 252 from 279.
Grab the next digit (6) from the dividend, add it to 27, then carry on: 276 / 28

Advancing to step 4:
The number 28 fits into 276 9 times, leaving a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 199.0
If we subtract 252 from 276, we get 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 28

Moving on to step 5:
The number 28 fits into 243 8 times, leaving a remainder of 19.
The next digit of our result is 8. 
Result so far: 1998.0
If we subtract 224 from 243, we get 19.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 28

On to step 6:
The number 28 fits into 191 6 times, leaving a remainder of 23.
Put 6 as the next digit of the answer. 
Result so far: 19986.0
Subtract 168 from 191 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
28 goes into 230 8 times with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 19986.8
Subtracting 224 from 230 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
The number 28 fits into 60 2 times, leaving a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 19986.82
If we take 56 away from 60, 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.

On to step 9:
When dividing 40 by 28, we get 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 19986.821
Deduct 28 from 40 and we're left 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.

On to step 10:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 19986.8214
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.

Step 11:
When dividing 80 by 28, we get 2 with a remainder of 24.
The next digit of our result is 2. 
Result so far: 19986.82142
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.

Moving on to step 12:
When dividing 240 by 28, we get 8 with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 19986.821428
The remainder is 16 after subtracting 224 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
160 divided by 28 is 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 19986.8214285
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.

Advancing to step 14:
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: 19986.82142857
Deduct 196 from 200 and we're left 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.

In conclusion, the division gives 19986.82142857 with a balance of 4e-09.