Let's divide 991352 by 13
The aim is to understand the frequency of 13 in 991352.

Let's proceed to step 1:
When dividing 9 by 13, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 13

Going ahead to step 2:
When dividing 99 by 13, we get 7 with a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 91 from 99, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 13

Advancing to step 3:
81 divided by 13 is 6 with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 76.0
If we subtract 78 from 81, we get 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 13

Going ahead to step 4:
13 can be fit into 33 2 times, resulting in a remainder of 7.
The next digit of our result is 2. 
Result so far: 762.0
If we subtract 26 from 33, we get 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 13

Let's proceed to step 5:
13 can be fit into 75 5 times, resulting in a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 7625.0
Subtracting 65 from 75 leaves us with 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 13

Moving on to step 6:
When dividing 102 by 13, we get 7 with a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 76257.0
The remainder is 11 after subtracting 91 from 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
13 goes into 110 8 times with a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 76257.8
If we take 104 away from 110, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
The number 13 fits into 60 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 76257.84
Deduct 52 from 60 and we're left with 8.
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 9:
13 can be fit into 80 6 times, resulting in a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 76257.846
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.

On to step 10:
20 divided by 13 is 1 with a remainder of 7.
The next digit of our result is 1. 
Result so far: 76257.8461
The remainder is 7 after subtracting 13 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
The number 13 fits into 70 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 76257.84615
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.

On to step 12:
50 divided by 13 is 3 with a remainder of 11.
The next digit of our result is 3. 
Result so far: 76257.846153
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.

Going ahead to step 13:
When dividing 110 by 13, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 76257.8461538
The remainder is 6 after subtracting 104 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 14:
60 divided by 13 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 76257.84615384
If we take 52 away from 60, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 76257.84615384 and a remainder of 8e-09.