591222 ÷ 28 
The aim is to understand the frequency of 28 in 591222.

Moving on to step 1:
If we divide 5 by 28, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 28

Moving on to step 2:
The number 28 fits into 59 2 times, leaving a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 56 from 59, we get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 28

Going ahead to step 3:
28 goes into 31 1 times with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 28 away from 31, we end up with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 28

Let's proceed to step 4:
The number 28 fits into 32 1 times, leaving a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 211.0
Subtract 28 from 32 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 28

Step 5:
42 divided by 28 is 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 2111.0
If we subtract 28 from 42, we get 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 28

Step 6:
28 can be fit into 142 5 times, resulting in a remainder of 2.
The next digit of our result is 5. 
Result so far: 21115.0
Subtract 140 from 142 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
20 divided by 28 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 21115.0
Subtracting 0 from 20 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.

Let's proceed to step 8:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 21115.07
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 9:
If we divide 40 by 28, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 21115.071
The remainder is 12 after subtracting 28 from 40.
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 10:
120 divided by 28 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 21115.0714
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.

Moving on to step 11:
28 goes into 80 2 times with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 21115.07142
Deduct 56 from 80 and we're left 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 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: 21115.071428
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.

Step 13:
If we divide 160 by 28, we get 5 and a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 21115.0714285
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.

On to step 14:
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: 21115.07142857
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.

After the division, we end up with 21115.07142857 and a remainder of 4e-09.