We look at the division of 88810857 by 13 
The aim is to understand the frequency of 13 in 88810857.

Moving on to step 1:
8 divided by 13 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 13

Moving on to step 2:
The number 13 fits into 88 6 times, leaving a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 78 from 88 and we're left with 10.
Include the next digit (8) from the dividend after 10, then repeat: 108 / 13

Let's proceed to step 3:
13 can be fit into 108 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 68.0
The remainder is 4 after subtracting 104 from 108.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 13

On to step 4:
When dividing 41 by 13, we get 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 683.0
If we subtract 39 from 41, we get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 13

Let's proceed to step 5:
13 can be fit into 20 1 times, resulting in a remainder of 7.
The next digit of our result is 1. 
Result so far: 6831.0
The remainder is 7 after subtracting 13 from 20.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 13

Let's proceed to step 6:
13 goes into 78 6 times with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 68316.0
Deduct 78 from 78 and we're left with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 13

Let's proceed to step 7:
5 divided by 13 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 683160.0
Subtract 0 from 5 to get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 13

Moving on to step 8:
57 divided by 13 is 4 with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 6831604.0
If we subtract 52 from 57, 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.

Step 9:
The number 13 fits into 50 3 times, leaving a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 6831604.3
If we subtract 39 from 50, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 10:
13 can be fit into 110 8 times, resulting in a remainder of 6.
The next digit of our result is 8. 
Result so far: 6831604.38
Deduct 104 from 110 and we're left 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.

Let's proceed to step 11:
If we divide 60 by 13, we get 4 and a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 6831604.384
If we subtract 52 from 60, we get 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 12:
If we divide 80 by 13, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 6831604.3846
The remainder is 2 after subtracting 78 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 13:
If we divide 20 by 13, we get 1 and a remainder of 7.
The next digit of our result is 1. 
Result so far: 6831604.38461
If we subtract 13 from 20, we 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.

On to step 14:
70 divided by 13 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 6831604.384615
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.

Advancing to step 15:
If we divide 50 by 13, we get 3 and a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 6831604.3846153
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.

Moving on to step 16:
When dividing 110 by 13, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 6831604.38461538
If we subtract 104 from 110, we 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.

The quotient of the division is 6831604.38461538, and the remainder is 6e-09.