We're dividing 82921706 by 13 
The aim is to understand the frequency of 13 in 82921706.

Step 1:
The number 13 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 13

Step 2:
13 goes into 82 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 78 from 82, we get 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 13

Advancing to step 3:
When dividing 49 by 13, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 63.0
Deduct 39 from 49 and we're left with 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 13

Step 4:
102 divided by 13 is 7 with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 637.0
If we take 91 away from 102, we end up with 11.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 13

Going ahead to step 5:
13 goes into 111 8 times with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 6378.0
Deduct 104 from 111 and we're left with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 13

Going ahead to step 6:
13 goes into 77 5 times with a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 63785.0
Subtract 65 from 77 to get 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 13

Advancing to step 7:
13 can be fit into 120 9 times, resulting in a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 637859.0
Subtracting 117 from 120 leaves us with 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 13

Going ahead to step 8:
When dividing 36 by 13, we get 2 with a remainder of 10.
The next digit of our result is 2. 
Result so far: 6378592.0
If we subtract 26 from 36, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
13 can be fit into 100 7 times, resulting in a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 6378592.7
Subtract 91 from 100 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
When dividing 90 by 13, we get 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 6378592.76
Subtracting 78 from 90 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 11:
When dividing 120 by 13, we get 9 with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 6378592.769
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 12:
13 goes into 30 2 times with a remainder of 4.
The next digit of our result is 2. 
Result so far: 6378592.7692
The remainder is 4 after subtracting 26 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
If we divide 40 by 13, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 6378592.76923
Deduct 39 from 40 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 14:
10 divided by 13 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 6378592.76923
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 15:
100 divided by 13 is 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 6378592.7692307
Subtract 91 from 100 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 16:
13 can be fit into 90 6 times, resulting in a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 6378592.76923076
Subtracting 78 from 90 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 6378592.76923076 with a remainder of 1.2e-08.