We look at the division of 239103 by 85 
The aim is to understand the frequency of 85 in 239103.

On to step 1:
If we divide 2 by 85, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 85

Going ahead to step 2:
85 can be fit into 23 0 times, resulting in a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 23 leaves us with 23.
Include the next digit (9) from the dividend after 23, then repeat: 239 / 85

On to step 3:
If we divide 239 by 85, we get 2 and a remainder of 69.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 170 from 239 to get 69.
Grab the next digit (1) from the dividend, add it to 69, then carry on: 691 / 85

Moving on to step 4:
When dividing 691 by 85, we get 8 with a remainder of 11.
The next digit of our result is 8. 
Result so far: 28.0
The remainder is 11 after subtracting 680 from 691.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 85

Advancing to step 5:
85 can be fit into 110 1 times, resulting in a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 281.0
Subtract 85 from 110 to get 25.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 85

On to step 6:
85 goes into 253 2 times with a remainder of 83.
The number 2 becomes the next digit in our result. 
Result so far: 2812.0
Deduct 170 from 253 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Step 7:
The number 85 fits into 830 9 times, leaving a remainder of 65.
Write down 9 as next digit of the result. 
Result so far: 2812.9
If we subtract 765 from 830, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 8:
If we divide 650 by 85, we get 7 and a remainder of 55.
Put 7 as the next digit of the answer. 
Result so far: 2812.97
Deduct 595 from 650 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 9:
The number 85 fits into 550 6 times, leaving a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 2812.976
Subtracting 510 from 550 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
85 can be fit into 400 4 times, resulting in a remainder of 60.
The next digit of our result is 4. 
Result so far: 2812.9764
The remainder is 60 after subtracting 340 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
If we divide 600 by 85, we get 7 and a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 2812.97647
Subtracting 595 from 600 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 12:
85 goes into 50 0 times with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 2812.97647
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 13:
The number 85 fits into 500 5 times, leaving a remainder of 75.
The next digit of our result is 5. 
Result so far: 2812.9764705
The remainder is 75 after subtracting 425 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 14:
If we divide 750 by 85, we get 8 and a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 2812.97647058
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.

The final outcome is 2812.97647058, with a leftover of 7e-08.