We divide 684045 by 85
The aim is to understand the frequency of 85 in 684045.

Advancing to step 1:
85 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 85

Advancing to step 2:
85 can be fit into 68 0 times, resulting in a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Include the next digit (4) from the dividend after 68, then repeat: 684 / 85

Step 3:
If we divide 684 by 85, we get 8 and a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 680 from 684 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 85

Let's proceed to step 4:
If we divide 40 by 85, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 80.0
Subtract 0 from 40 to get 40.
Fetch the next digit (4) from the dividend, attach it to 40 and continue: 404 / 85

On to step 5:
If we divide 404 by 85, we get 4 and a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 804.0
Subtract 340 from 404 to get 64.
Fetch the next digit (5) from the dividend, attach it to 64 and continue: 645 / 85

On to step 6:
645 divided by 85 is 7 with a remainder of 50.
Write down 7 as next digit of the result. 
Result so far: 8047.0
Subtracting 595 from 645 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.

Moving on to step 7:
If we divide 500 by 85, we get 5 and a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 8047.5
If we subtract 425 from 500, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 8:
The number 85 fits into 750 8 times, leaving a remainder of 70.
The next digit of our result is 8. 
Result so far: 8047.58
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.

On to step 9:
When dividing 700 by 85, we get 8 with a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 8047.588
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.

The final outcome is 8047.588, with a leftover of 0.002.