15198849 ÷ 135 
The aim is to understand the frequency of 135 in 15198849.

Going ahead to step 1:
If we divide 1 by 135, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 135

Moving on to step 2:
If we divide 15 by 135, we get 0 and a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Include the next digit (1) from the dividend after 15, then repeat: 151 / 135

Moving on to step 3:
The number 135 fits into 151 1 times, leaving a remainder of 16.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 135 from 151 and we're left with 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 135

Going ahead to step 4:
If we divide 169 by 135, we get 1 and a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 135 from 169 and we're left with 34.
Fetch the next digit (8) from the dividend, attach it to 34 and continue: 348 / 135

On to step 5:
The number 135 fits into 348 2 times, leaving a remainder of 78.
Put 2 as the next digit of the answer. 
Result so far: 112.0
If we take 270 away from 348, we end up with 78.
Grab the next digit (8) from the dividend, add it to 78, then carry on: 788 / 135

Let's proceed to step 6:
135 goes into 788 5 times with a remainder of 113.
The next digit of our result is 5. 
Result so far: 1125.0
The remainder is 113 after subtracting 675 from 788.
Bring next digit (4) of the dividend behind the 113 and repeat the process: 1134 / 135

Let's proceed to step 7:
135 can be fit into 1134 8 times, resulting in a remainder of 54.
Write down 8 as next digit of the result. 
Result so far: 11258.0
If we subtract 1080 from 1134, we get 54.
Grab the next digit (9) from the dividend, add it to 54, then carry on: 549 / 135

Moving on to step 8:
135 can be fit into 549 4 times, resulting in a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 112584.0
If we subtract 540 from 549, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 9:
If we divide 90 by 135, we get 0 and a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 112584.0
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 10:
If we divide 900 by 135, we get 6 and a remainder of 90.
Record the quotient 6 as the next digit in the result. 
Result so far: 112584.06
Subtract 810 from 900 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 11:
The number 135 fits into 900 6 times, leaving a remainder of 90.
Write down 6 as next digit of the result. 
Result so far: 112584.066
The remainder is 90 after subtracting 810 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The final result is 112584.066 with a remainder of 0.009.