87856292 divided by 13 
The aim is to understand the frequency of 13 in 87856292.

Going ahead to step 1:
If we divide 8 by 13, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 13

On to step 2:
The number 13 fits into 87 6 times, leaving a remainder of 9.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 78 from 87 leaves us with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 13

Let's proceed to step 3:
When dividing 98 by 13, we get 7 with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 67.0
The remainder is 7 after subtracting 91 from 98.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 13

Step 4:
13 goes into 75 5 times with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 675.0
The remainder is 10 after subtracting 65 from 75.
Include the next digit (6) from the dividend after 10, then repeat: 106 / 13

On to step 5:
When dividing 106 by 13, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 6758.0
If we take 104 away from 106, we end up with 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 13

Moving on to step 6:
22 divided by 13 is 1 with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 67581.0
If we subtract 13 from 22, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 13

Advancing to step 7:
The number 13 fits into 99 7 times, leaving a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 675817.0
Deduct 91 from 99 and we're left with 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 13

Moving on to step 8:
13 goes into 82 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 6758176.0
If we subtract 78 from 82, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
If we divide 40 by 13, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 6758176.3
If we subtract 39 from 40, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 10:
If we divide 10 by 13, we get 0 and a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 6758176.3
Subtract 0 from 10 to 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 11:
The number 13 fits into 100 7 times, leaving a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 6758176.307
If we take 91 away from 100, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 12:
90 divided by 13 is 6 with a remainder of 12.
The next digit of our result is 6. 
Result so far: 6758176.3076
Subtract 78 from 90 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 13:
If we divide 120 by 13, we get 9 and a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 6758176.30769
If we subtract 117 from 120, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 14:
30 divided by 13 is 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 6758176.307692
If we take 26 away from 30, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 15:
When dividing 40 by 13, we get 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 6758176.3076923
Subtract 39 from 40 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 16:
If we divide 10 by 13, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 6758176.3076923
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 6758176.3076923 with a balance of 1e-08.