We divide 135093 by 31
The aim is to understand the frequency of 31 in 135093.

Step 1:
31 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 31

Let's proceed to step 2:
31 goes into 13 0 times with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 31

Step 3:
31 goes into 135 4 times with a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 124 from 135 to get 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 31

Step 4:
When dividing 110 by 31, we get 3 with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 43.0
If we subtract 93 from 110, we get 17.
Append the next digit (9) from the dividend to 17 and continue with: 179 / 31

Step 5:
When dividing 179 by 31, we get 5 with a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 435.0
If we take 155 away from 179, we end up with 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 31

Moving on to step 6:
When dividing 243 by 31, we get 7 with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 4357.0
Deduct 217 from 243 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 7:
260 divided by 31 is 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 4357.8
Subtracting 248 from 260 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 8:
31 can be fit into 120 3 times, resulting in a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 4357.83
Subtract 93 from 120 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
When dividing 270 by 31, we get 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 4357.838
The remainder is 22 after subtracting 248 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 10:
When dividing 220 by 31, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 4357.8387
If we subtract 217 from 220, 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.

Advancing to step 11:
30 divided by 31 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 4357.8387
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 12:
If we divide 300 by 31, we get 9 and a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 4357.838709
If we subtract 279 from 300, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 13:
31 goes into 210 6 times with a remainder of 24.
The next digit of our result is 6. 
Result so far: 4357.8387096
If we subtract 186 from 210, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 14:
The number 31 fits into 240 7 times, leaving a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 4357.83870967
Deduct 217 from 240 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

After the division, we end up with 4357.83870967 and a remainder of 2.3e-08.