90135 ÷ 38 
The aim is to understand the frequency of 38 in 90135.

Let's proceed to step 1:
38 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 38

On to step 2:
When dividing 90 by 38, we get 2 with a remainder of 14.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 76 from 90 to get 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 38

Moving on to step 3:
If we divide 141 by 38, we get 3 and a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we take 114 away from 141, we end up with 27.
Include the next digit (3) from the dividend after 27, then repeat: 273 / 38

Moving on to step 4:
273 divided by 38 is 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 237.0
Subtract 266 from 273 to get 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 38

Step 5:
38 can be fit into 75 1 times, resulting in a remainder of 37.
Write down 1 as next digit of the result. 
Result so far: 2371.0
Deduct 38 from 75 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 6:
When dividing 370 by 38, we get 9 with a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 2371.9
Subtract 342 from 370 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 7:
When dividing 280 by 38, we get 7 with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 2371.97
If we subtract 266 from 280, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 8:
If we divide 140 by 38, we get 3 and a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 2371.973
Subtracting 114 from 140 leaves us 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.

Moving on to step 9:
If we divide 260 by 38, we get 6 and a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 2371.9736
If we take 228 away from 260, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
38 goes into 320 8 times with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 2371.97368
If we take 304 away from 320, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
When dividing 160 by 38, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 2371.973684
Subtracting 152 from 160 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 12:
When dividing 80 by 38, we get 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 2371.9736842
If we subtract 76 from 80, 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.

Moving on to step 13:
40 divided by 38 is 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 2371.97368421
Subtracting 38 from 40 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 2371.97368421 with a remaining 2e-09.