We look at the division of 172047 by 74 
The aim is to understand the frequency of 74 in 172047.

On to step 1:
1 divided by 74 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 74

Advancing to step 2:
The number 74 fits into 17 0 times, leaving a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 74

Going ahead to step 3:
When dividing 172 by 74, we get 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 148 from 172, we get 24.
Append the next digit (0) from the dividend to 24 and continue with: 240 / 74

Moving on to step 4:
240 divided by 74 is 3 with a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
The remainder is 18 after subtracting 222 from 240.
Take the next digit (4) from the dividend and append it to 18, then repeat: 184 / 74

Step 5:
184 divided by 74 is 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 232.0
If we take 148 away from 184, we end up with 36.
Grab the next digit (7) from the dividend, add it to 36, then carry on: 367 / 74

Going ahead to step 6:
367 divided by 74 is 4 with a remainder of 71.
Put 4 as the next digit of the answer. 
Result so far: 2324.0
If we take 296 away from 367, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 7:
If we divide 710 by 74, we get 9 and a remainder of 44.
Put 9 as the next digit of the answer. 
Result so far: 2324.9
If we subtract 666 from 710, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 8:
74 goes into 440 5 times with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 2324.95
The remainder is 70 after subtracting 370 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 9:
74 can be fit into 700 9 times, resulting in a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 2324.959
Subtract 666 from 700 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 10:
The number 74 fits into 340 4 times, leaving a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 2324.9594
Subtracting 296 from 340 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 11:
The number 74 fits into 440 5 times, leaving a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 2324.95945
The remainder is 70 after subtracting 370 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 12:
700 divided by 74 is 9 with a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 2324.959459
Subtracting 666 from 700 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 13:
The number 74 fits into 340 4 times, leaving a remainder of 44.
The next digit of our result is 4. 
Result so far: 2324.9594594
Subtracting 296 from 340 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 14:
74 goes into 440 5 times with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 2324.95945945
Deduct 370 from 440 and we're left 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.

The final outcome is 2324.95945945, with a leftover of 7e-08.