We look at the division of 183913 by 85 
The aim is to understand the frequency of 85 in 183913.

Step 1:
When dividing 1 by 85, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 85

Step 2:
85 can be fit into 18 0 times, resulting in a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Bring next digit (3) of the dividend behind the 18 and repeat the process: 183 / 85

Moving on to step 3:
If we divide 183 by 85, we get 2 and a remainder of 13.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 170 from 183 to get 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 85

Moving on to step 4:
85 goes into 139 1 times with a remainder of 54.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 85 from 139, we get 54.
Fetch the next digit (1) from the dividend, attach it to 54 and continue: 541 / 85

Moving on to step 5:
When dividing 541 by 85, we get 6 with a remainder of 31.
Use 6 as the next digit of our solution. 
Result so far: 216.0
If we take 510 away from 541, we end up with 31.
Fetch the next digit (3) from the dividend, attach it to 31 and continue: 313 / 85

Let's proceed to step 6:
85 can be fit into 313 3 times, resulting in a remainder of 58.
The next digit of our result is 3. 
Result so far: 2163.0
Deduct 255 from 313 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 7:
If we divide 580 by 85, we get 6 and a remainder of 70.
Use 6 as the next digit of our solution. 
Result so far: 2163.6
If we subtract 510 from 580, we 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.

Advancing to step 8:
When dividing 700 by 85, we get 8 with a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 2163.68
The remainder is 20 after subtracting 680 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
85 goes into 200 2 times with a remainder of 30.
The next digit of our result is 2. 
Result so far: 2163.682
If we take 170 away from 200, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
85 goes into 300 3 times with a remainder of 45.
Use 3 as the next digit of our solution. 
Result so far: 2163.6823
The remainder is 45 after subtracting 255 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 11:
If we divide 450 by 85, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 2163.68235
If we take 425 away from 450, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 12:
The number 85 fits into 250 2 times, leaving a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 2163.682352
Subtracting 170 from 250 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 13:
When dividing 800 by 85, we get 9 with a remainder of 35.
Use 9 as the next digit of our solution. 
Result so far: 2163.6823529
The remainder is 35 after subtracting 765 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 14:
The number 85 fits into 350 4 times, leaving a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 2163.68235294
Subtract 340 from 350 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 2163.68235294 and a remainder of 1e-08.