We're dividing 30685321 by 852 
The aim is to understand the frequency of 852 in 30685321.

On to step 1:
When dividing 3 by 852, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 852

Going ahead to step 2:
30 divided by 852 is 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Append the next digit (6) from the dividend to 30 and continue with: 306 / 852

Moving on to step 3:
When dividing 306 by 852, we get 0 with a remainder of 306.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 306, we end up with 306.
Take the next digit (8) from the dividend and append it to 306, then repeat: 3068 / 852

Advancing to step 4:
When dividing 3068 by 852, we get 3 with a remainder of 512.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 2556 away from 3068, we end up with 512.
Include the next digit (5) from the dividend after 512, then repeat: 5125 / 852

Step 5:
852 goes into 5125 6 times with a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we subtract 5112 from 5125, we get 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 852

On to step 6:
852 can be fit into 133 0 times, resulting in a remainder of 133.
The next digit of our result is 0. 
Result so far: 360.0
Subtracting 0 from 133 leaves us with 133.
Take the next digit (2) from the dividend and append it to 133, then repeat: 1332 / 852

On to step 7:
If we divide 1332 by 852, we get 1 and a remainder of 480.
The next digit of our result is 1. 
Result so far: 3601.0
Deduct 852 from 1332 and we're left with 480.
Bring next digit (1) of the dividend behind the 480 and repeat the process: 4801 / 852

Going ahead to step 8:
852 goes into 4801 5 times with a remainder of 541.
Record the quotient 5 as the next digit in the result. 
Result so far: 36015.0
If we take 4260 away from 4801, we end up with 541.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5410, and continue the process.

On to step 9:
If we divide 5410 by 852, we get 6 and a remainder of 298.
Use 6 as the next digit of our solution. 
Result so far: 36015.6
Subtract 5112 from 5410 to get 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

On to step 10:
The number 852 fits into 2980 3 times, leaving a remainder of 424.
The number 3 becomes the next digit in our result. 
Result so far: 36015.63
Deduct 2556 from 2980 and we're left with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Let's proceed to step 11:
852 goes into 4240 4 times with a remainder of 832.
The next digit of our result is 4. 
Result so far: 36015.634
Subtract 3408 from 4240 to get 832.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8320, and continue the process.

Advancing to step 12:
852 can be fit into 8320 9 times, resulting in a remainder of 652.
The number 9 becomes the next digit in our result. 
Result so far: 36015.6349
Deduct 7668 from 8320 and we're left with 652.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6520, and continue the process.

Let's proceed to step 13:
6520 divided by 852 is 7 with a remainder of 556.
The number 7 becomes the next digit in our result. 
Result so far: 36015.63497
Deduct 5964 from 6520 and we're left with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Step 14:
If we divide 5560 by 852, we get 6 and a remainder of 448.
Put 6 as the next digit of the answer. 
Result so far: 36015.634976
Subtract 5112 from 5560 to get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Going ahead to step 15:
When dividing 4480 by 852, we get 5 with a remainder of 220.
Put 5 as the next digit of the answer. 
Result so far: 36015.6349765
If we subtract 4260 from 4480, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 16:
The number 852 fits into 2200 2 times, leaving a remainder of 496.
Write down 2 as next digit of the result. 
Result so far: 36015.63497652
The remainder is 496 after subtracting 1704 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

The final result is 36015.63497652 with a remainder of 4.96e-07.