Let's divide 996991 by 28
The aim is to understand the frequency of 28 in 996991.

Step 1:
When dividing 9 by 28, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 28

Moving on to step 2:
When dividing 99 by 28, we get 3 with a remainder of 15.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 15 after subtracting 84 from 99.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 28

On to step 3:
28 can be fit into 156 5 times, resulting in a remainder of 16.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
Subtract 140 from 156 to get 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 28

Advancing to step 4:
28 can be fit into 169 6 times, resulting in a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 356.0
Subtracting 168 from 169 leaves us with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 28

Going ahead to step 5:
When dividing 19 by 28, we get 0 with a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 3560.0
Subtracting 0 from 19 leaves us with 19.
Grab the next digit (1) from the dividend, add it to 19, then carry on: 191 / 28

Step 6:
191 divided by 28 is 6 with a remainder of 23.
Record the quotient 6 as the next digit in the result. 
Result so far: 35606.0
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.

Going ahead to step 7:
230 divided by 28 is 8 with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 35606.8
If we take 224 away from 230, we end up 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.

Advancing to step 8:
60 divided by 28 is 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 35606.82
The remainder is 4 after subtracting 56 from 60.
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.
Put 1 as the next digit of the answer. 
Result so far: 35606.821
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.

On to step 10:
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: 35606.8214
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.

On to step 11:
When dividing 80 by 28, we get 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 35606.82142
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.

Step 12:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 35606.821428
If we take 224 away from 240, we end up 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.

Advancing to step 13:
28 can be fit into 160 5 times, resulting in a remainder of 20.
The next digit of our result is 5. 
Result so far: 35606.8214285
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.

Step 14:
28 goes into 200 7 times with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 35606.82142857
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.

In conclusion, the division gives 35606.82142857 with a balance of 4e-09.