We divide 717603 by 28
The aim is to understand the frequency of 28 in 717603.

Advancing to step 1:
28 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 28

Going ahead to step 2:
When dividing 71 by 28, we get 2 with a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
If we take 56 away from 71, we end up with 15.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 28

Let's proceed to step 3:
157 divided by 28 is 5 with a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 25.0
The remainder is 17 after subtracting 140 from 157.
Bring next digit (6) of the dividend behind the 17 and repeat the process: 176 / 28

Advancing to step 4:
If we divide 176 by 28, we get 6 and a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 256.0
Subtract 168 from 176 to get 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 28

On to step 5:
28 can be fit into 80 2 times, resulting in a remainder of 24.
The next digit of our result is 2. 
Result so far: 2562.0
If we take 56 away from 80, we end up with 24.
Take the next digit (3) from the dividend and append it to 24, then repeat: 243 / 28

Advancing to step 6:
If we divide 243 by 28, we get 8 and a remainder of 19.
Record the quotient 8 as the next digit in the result. 
Result so far: 25628.0
Subtract 224 from 243 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
If we divide 190 by 28, we get 6 and a remainder of 22.
The next digit of our result is 6. 
Result so far: 25628.6
If we take 168 away from 190, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
28 can be fit into 220 7 times, resulting in a remainder of 24.
The next digit of our result is 7. 
Result so far: 25628.67
If we subtract 196 from 220, we 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.

Moving on to step 9:
28 goes into 240 8 times with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 25628.678
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.

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: 25628.6785
The remainder is 20 after subtracting 140 from 160.
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 11:
28 goes into 200 7 times with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 25628.67857
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.

Going ahead to step 12:
If we divide 40 by 28, we get 1 and a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 25628.678571
If we subtract 28 from 40, 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.

Going ahead to step 13:
When dividing 120 by 28, we get 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 25628.6785714
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 14:
If we divide 80 by 28, we get 2 and a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 25628.67857142
If we subtract 56 from 80, we 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.

The final result is 25628.67857142 with a remainder of 2.4e-08.