97145852 ÷ 809 
The aim is to understand the frequency of 809 in 97145852.

Moving on to step 1:
809 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 809

Let's proceed to step 2:
809 can be fit into 97 0 times, resulting in a remainder of 97.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 97, we end up with 97.
Grab the next digit (1) from the dividend, add it to 97, then carry on: 971 / 809

Step 3:
The number 809 fits into 971 1 times, leaving a remainder of 162.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 809 from 971, we get 162.
Take the next digit (4) from the dividend and append it to 162, then repeat: 1624 / 809

Let's proceed to step 4:
1624 divided by 809 is 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 6 after subtracting 1618 from 1624.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 809

Advancing to step 5:
When dividing 65 by 809, we get 0 with a remainder of 65.
The next digit of our result is 0. 
Result so far: 120.0
If we subtract 0 from 65, we get 65.
Append the next digit (8) from the dividend to 65 and continue with: 658 / 809

Advancing to step 6:
809 goes into 658 0 times with a remainder of 658.
The number 0 becomes the next digit in our result. 
Result so far: 1200.0
Subtract 0 from 658 to get 658.
Grab the next digit (5) from the dividend, add it to 658, then carry on: 6585 / 809

On to step 7:
When dividing 6585 by 809, we get 8 with a remainder of 113.
Put 8 as the next digit of the answer. 
Result so far: 12008.0
Deduct 6472 from 6585 and we're left with 113.
Append the next digit (2) from the dividend to 113 and continue with: 1132 / 809

Moving on to step 8:
1132 divided by 809 is 1 with a remainder of 323.
The next digit of our result is 1. 
Result so far: 120081.0
If we take 809 away from 1132, we end up with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Going ahead to step 9:
The number 809 fits into 3230 3 times, leaving a remainder of 803.
Put 3 as the next digit of the answer. 
Result so far: 120081.3
The remainder is 803 after subtracting 2427 from 3230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8030, and continue the process.

Step 10:
When dividing 8030 by 809, we get 9 with a remainder of 749.
Write down 9 as next digit of the result. 
Result so far: 120081.39
Subtracting 7281 from 8030 leaves us with 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Going ahead to step 11:
When dividing 7490 by 809, we get 9 with a remainder of 209.
Use 9 as the next digit of our solution. 
Result so far: 120081.399
Subtracting 7281 from 7490 leaves us with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

In conclusion, the division gives 120081.399 with a balance of 0.0209.