308240 ÷ 79 
The aim is to understand the frequency of 79 in 308240.

On to step 1:
79 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 79

Step 2:
If we divide 30 by 79, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Bring next digit (8) of the dividend behind the 30 and repeat the process: 308 / 79

Advancing to step 3:
When dividing 308 by 79, we get 3 with a remainder of 71.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 237 from 308 and we're left with 71.
Fetch the next digit (2) from the dividend, attach it to 71 and continue: 712 / 79

Going ahead to step 4:
79 goes into 712 9 times with a remainder of 1.
The next digit of our result is 9. 
Result so far: 39.0
Subtracting 711 from 712 leaves us with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 79

Step 5:
When dividing 14 by 79, we get 0 with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 390.0
Subtract 0 from 14 to get 14.
Take the next digit (0) from the dividend and append it to 14, then repeat: 140 / 79

Moving on to step 6:
When dividing 140 by 79, we get 1 with a remainder of 61.
Write down 1 as next digit of the result. 
Result so far: 3901.0
The remainder is 61 after subtracting 79 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 7:
If we divide 610 by 79, we get 7 and a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 3901.7
If we subtract 553 from 610, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 8:
The number 79 fits into 570 7 times, leaving a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 3901.77
If we take 553 away from 570, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final result is 3901.77 with a remainder of 0.017.