We look at the division of 93093031 by 135 
The aim is to understand the frequency of 135 in 93093031.

Going ahead to step 1:
If we divide 9 by 135, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 135

On to step 2:
135 goes into 93 0 times with a remainder of 93.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 93 leaves us with 93.
Fetch the next digit (0) from the dividend, attach it to 93 and continue: 930 / 135

Moving on to step 3:
If we divide 930 by 135, we get 6 and a remainder of 120.
The next digit of our result is 6. 
Result so far: 6.0
The remainder is 120 after subtracting 810 from 930.
Fetch the next digit (9) from the dividend, attach it to 120 and continue: 1209 / 135

Advancing to step 4:
1209 divided by 135 is 8 with a remainder of 129.
Record the quotient 8 as the next digit in the result. 
Result so far: 68.0
Subtract 1080 from 1209 to get 129.
Append the next digit (3) from the dividend to 129 and continue with: 1293 / 135

Advancing to step 5:
135 can be fit into 1293 9 times, resulting in a remainder of 78.
The number 9 becomes the next digit in our result. 
Result so far: 689.0
Deduct 1215 from 1293 and we're left with 78.
Include the next digit (0) from the dividend after 78, then repeat: 780 / 135

Going ahead to step 6:
780 divided by 135 is 5 with a remainder of 105.
Put 5 as the next digit of the answer. 
Result so far: 6895.0
If we take 675 away from 780, we end up with 105.
Grab the next digit (3) from the dividend, add it to 105, then carry on: 1053 / 135

Step 7:
If we divide 1053 by 135, we get 7 and a remainder of 108.
Use 7 as the next digit of our solution. 
Result so far: 68957.0
If we subtract 945 from 1053, we get 108.
Fetch the next digit (1) from the dividend, attach it to 108 and continue: 1081 / 135

Step 8:
135 goes into 1081 8 times with a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 689578.0
Subtracting 1080 from 1081 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
135 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 689578.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
The number 135 fits into 100 0 times, leaving a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 689578.0
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 689578.0, and the remainder is 0.1.