We're dividing 13574161 by 852 
The aim is to understand the frequency of 852 in 13574161.

Moving on to step 1:
The number 852 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 852

Going ahead to step 2:
When dividing 13 by 852, we get 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 852

Let's proceed to step 3:
The number 852 fits into 135 0 times, leaving a remainder of 135.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 135 to get 135.
Take the next digit (7) from the dividend and append it to 135, then repeat: 1357 / 852

Step 4:
The number 852 fits into 1357 1 times, leaving a remainder of 505.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 852 from 1357 to get 505.
Fetch the next digit (4) from the dividend, attach it to 505 and continue: 5054 / 852

Step 5:
When dividing 5054 by 852, we get 5 with a remainder of 794.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we subtract 4260 from 5054, we get 794.
Bring next digit (1) of the dividend behind the 794 and repeat the process: 7941 / 852

On to step 6:
If we divide 7941 by 852, we get 9 and a remainder of 273.
Record the quotient 9 as the next digit in the result. 
Result so far: 159.0
Deduct 7668 from 7941 and we're left with 273.
Bring next digit (6) of the dividend behind the 273 and repeat the process: 2736 / 852

Advancing to step 7:
2736 divided by 852 is 3 with a remainder of 180.
Put 3 as the next digit of the answer. 
Result so far: 1593.0
The remainder is 180 after subtracting 2556 from 2736.
Append the next digit (1) from the dividend to 180 and continue with: 1801 / 852

Going ahead to step 8:
852 can be fit into 1801 2 times, resulting in a remainder of 97.
The number 2 becomes the next digit in our result. 
Result so far: 15932.0
Deduct 1704 from 1801 and we're left with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Moving on to step 9:
852 can be fit into 970 1 times, resulting in a remainder of 118.
The next digit of our result is 1. 
Result so far: 15932.1
The remainder is 118 after subtracting 852 from 970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Advancing to step 10:
852 can be fit into 1180 1 times, resulting in a remainder of 328.
The next digit of our result is 1. 
Result so far: 15932.11
If we take 852 away from 1180, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

The final outcome is 15932.11, with a leftover of 0.328.