We look at the division of 572509 by 74 
The aim is to understand the frequency of 74 in 572509.

On to step 1:
5 divided by 74 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 74

Moving on to step 2:
When dividing 57 by 74, we get 0 with a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 57 after subtracting 0 from 57.
Grab the next digit (2) from the dividend, add it to 57, then carry on: 572 / 74

Advancing to step 3:
572 divided by 74 is 7 with a remainder of 54.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 518 from 572, we get 54.
Bring next digit (5) of the dividend behind the 54 and repeat the process: 545 / 74

Advancing to step 4:
545 divided by 74 is 7 with a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Deduct 518 from 545 and we're left with 27.
Append the next digit (0) from the dividend to 27 and continue with: 270 / 74

Step 5:
74 goes into 270 3 times with a remainder of 48.
Put 3 as the next digit of the answer. 
Result so far: 773.0
If we take 222 away from 270, we end up with 48.
Include the next digit (9) from the dividend after 48, then repeat: 489 / 74

On to step 6:
74 can be fit into 489 6 times, resulting in a remainder of 45.
Write down 6 as next digit of the result. 
Result so far: 7736.0
If we take 444 away from 489, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 7:
74 can be fit into 450 6 times, resulting in a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 7736.6
Subtract 444 from 450 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
The number 74 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 7736.6
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 9:
74 can be fit into 600 8 times, resulting in a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 7736.608
Subtract 592 from 600 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
74 goes into 80 1 times with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 7736.6081
The remainder is 6 after subtracting 74 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
The number 74 fits into 60 0 times, leaving a remainder of 60.
The next digit of our result is 0. 
Result so far: 7736.6081
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
74 can be fit into 600 8 times, resulting in a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 7736.608108
If we subtract 592 from 600, we get 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 13:
74 goes into 80 1 times with a remainder of 6.
The next digit of our result is 1. 
Result so far: 7736.6081081
If we subtract 74 from 80, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 14:
If we divide 60 by 74, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 7736.6081081
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 7736.6081081, with a leftover of 6e-08.