We divide 721787 by 85
The aim is to understand the frequency of 85 in 721787.

Advancing to step 1:
The number 85 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 85

On to step 2:
If we divide 72 by 85, we get 0 and a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Take the next digit (1) from the dividend and append it to 72, then repeat: 721 / 85

Step 3:
When dividing 721 by 85, we get 8 with a remainder of 41.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 680 from 721 and we're left with 41.
Grab the next digit (7) from the dividend, add it to 41, then carry on: 417 / 85

Advancing to step 4:
When dividing 417 by 85, we get 4 with a remainder of 77.
Use 4 as the next digit of our solution. 
Result so far: 84.0
If we subtract 340 from 417, we get 77.
Bring next digit (8) of the dividend behind the 77 and repeat the process: 778 / 85

Let's proceed to step 5:
85 can be fit into 778 9 times, resulting in a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 849.0
The remainder is 13 after subtracting 765 from 778.
Include the next digit (7) from the dividend after 13, then repeat: 137 / 85

Let's proceed to step 6:
The number 85 fits into 137 1 times, leaving a remainder of 52.
The number 1 becomes the next digit in our result. 
Result so far: 8491.0
If we take 85 away from 137, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 7:
When dividing 520 by 85, we get 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 8491.6
The remainder is 10 after subtracting 510 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
When dividing 100 by 85, we get 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 8491.61
If we take 85 away from 100, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 9:
85 can be fit into 150 1 times, resulting in a remainder of 65.
Record the quotient 1 as the next digit in the result. 
Result so far: 8491.611
If we take 85 away from 150, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final outcome is 8491.611, with a leftover of 0.0065.