We look at the division of 8512836 by 135 
The aim is to understand the frequency of 135 in 8512836.

Step 1:
135 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 135

Let's proceed to step 2:
135 goes into 85 0 times with a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Include the next digit (1) from the dividend after 85, then repeat: 851 / 135

Advancing to step 3:
The number 135 fits into 851 6 times, leaving a remainder of 41.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 810 from 851 to get 41.
Grab the next digit (2) from the dividend, add it to 41, then carry on: 412 / 135

Moving on to step 4:
If we divide 412 by 135, we get 3 and a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 63.0
The remainder is 7 after subtracting 405 from 412.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 135

Advancing to step 5:
If we divide 78 by 135, we get 0 and a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 630.0
Subtracting 0 from 78 leaves us with 78.
Fetch the next digit (3) from the dividend, attach it to 78 and continue: 783 / 135

Advancing to step 6:
The number 135 fits into 783 5 times, leaving a remainder of 108.
The number 5 becomes the next digit in our result. 
Result so far: 6305.0
If we take 675 away from 783, we end up with 108.
Take the next digit (6) from the dividend and append it to 108, then repeat: 1086 / 135

Moving on to step 7:
135 goes into 1086 8 times with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 63058.0
Deduct 1080 from 1086 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.

Advancing to step 8:
60 divided by 135 is 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 63058.0
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
When dividing 600 by 135, we get 4 with a remainder of 60.
Use 4 as the next digit of our solution. 
Result so far: 63058.04
Subtracting 540 from 600 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 10:
The number 135 fits into 600 4 times, leaving a remainder of 60.
The number 4 becomes the next digit in our result. 
Result so far: 63058.044
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 63058.044 and a remainder of 0.006.