We look at the division of 138233 by 85 
The aim is to understand the frequency of 85 in 138233.

Moving on to step 1:
When dividing 1 by 85, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 85

On to step 2:
13 divided by 85 is 0 with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 85

Advancing to step 3:
If we divide 138 by 85, we get 1 and a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 53 after subtracting 85 from 138.
Take the next digit (2) from the dividend and append it to 53, then repeat: 532 / 85

On to step 4:
If we divide 532 by 85, we get 6 and a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 510 from 532 leaves us with 22.
Append the next digit (3) from the dividend to 22 and continue with: 223 / 85

Advancing to step 5:
85 can be fit into 223 2 times, resulting in a remainder of 53.
Put 2 as the next digit of the answer. 
Result so far: 162.0
If we subtract 170 from 223, we get 53.
Include the next digit (3) from the dividend after 53, then repeat: 533 / 85

Going ahead to step 6:
85 goes into 533 6 times with a remainder of 23.
Use 6 as the next digit of our solution. 
Result so far: 1626.0
The remainder is 23 after subtracting 510 from 533.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
230 divided by 85 is 2 with a remainder of 60.
Record the quotient 2 as the next digit in the result. 
Result so far: 1626.2
If we subtract 170 from 230, we 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.

Let's proceed to step 8:
If we divide 600 by 85, we get 7 and a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 1626.27
The remainder is 5 after subtracting 595 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
85 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 1626.27
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
85 can be fit into 500 5 times, resulting in a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 1626.2705
If we take 425 away from 500, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 11:
When dividing 750 by 85, we get 8 with a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 1626.27058
Subtract 680 from 750 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 12:
When dividing 700 by 85, we get 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 1626.270588
Deduct 680 from 700 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 1626.270588 and a remainder of 2e-06.