We look at the division of 604815 by 79 
The aim is to understand the frequency of 79 in 604815.

Moving on to step 1:
6 divided by 79 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 79

On to step 2:
If we divide 60 by 79, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 60, we end up with 60.
Take the next digit (4) from the dividend and append it to 60, then repeat: 604 / 79

Moving on to step 3:
79 goes into 604 7 times with a remainder of 51.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 553 from 604 leaves us with 51.
Bring next digit (8) of the dividend behind the 51 and repeat the process: 518 / 79

Let's proceed to step 4:
The number 79 fits into 518 6 times, leaving a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 76.0
Deduct 474 from 518 and we're left with 44.
Append the next digit (1) from the dividend to 44 and continue with: 441 / 79

On to step 5:
79 can be fit into 441 5 times, resulting in a remainder of 46.
Put 5 as the next digit of the answer. 
Result so far: 765.0
If we subtract 395 from 441, we get 46.
Take the next digit (5) from the dividend and append it to 46, then repeat: 465 / 79

Moving on to step 6:
The number 79 fits into 465 5 times, leaving a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 7655.0
Subtracting 395 from 465 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 7:
79 goes into 700 8 times with a remainder of 68.
The next digit of our result is 8. 
Result so far: 7655.8
If we take 632 away from 700, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 8:
79 goes into 680 8 times with a remainder of 48.
The next digit of our result is 8. 
Result so far: 7655.88
If we take 632 away from 680, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 7655.88, with a leftover of 0.048.