Let's divide 7699621 by 13
The aim is to understand the frequency of 13 in 7699621.

Step 1:
The number 13 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 13

Going ahead to step 2:
The number 13 fits into 76 5 times, leaving a remainder of 11.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 11 after subtracting 65 from 76.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 13

Moving on to step 3:
When dividing 119 by 13, we get 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 59.0
If we take 117 away from 119, we end up with 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 13

On to step 4:
The number 13 fits into 29 2 times, leaving a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 592.0
Subtract 26 from 29 to get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 13

Advancing to step 5:
36 divided by 13 is 2 with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 5922.0
If we subtract 26 from 36, we get 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 13

Moving on to step 6:
13 can be fit into 102 7 times, resulting in a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 59227.0
Subtract 91 from 102 to get 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 13

Going ahead to step 7:
13 goes into 111 8 times with a remainder of 7.
The next digit of our result is 8. 
Result so far: 592278.0
Subtract 104 from 111 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 8:
70 divided by 13 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 592278.5
If we subtract 65 from 70, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
When dividing 50 by 13, we get 3 with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 592278.53
The remainder is 11 after subtracting 39 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 10:
When dividing 110 by 13, we get 8 with a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 592278.538
Subtract 104 from 110 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
If we divide 60 by 13, we get 4 and a remainder of 8.
The next digit of our result is 4. 
Result so far: 592278.5384
The remainder is 8 after subtracting 52 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
13 goes into 80 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 592278.53846
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 13:
13 goes into 20 1 times with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 592278.538461
Deduct 13 from 20 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 14:
13 goes into 70 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 592278.5384615
Subtract 65 from 70 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 15:
If we divide 50 by 13, we get 3 and a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 592278.53846153
Subtracting 39 from 50 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final result is 592278.53846153 with a remainder of 1.1e-08.