840664 ÷ 85 
The aim is to understand the frequency of 85 in 840664.

Going ahead to step 1:
The number 85 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 85

Advancing to step 2:
When dividing 84 by 85, we get 0 with a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Append the next digit (0) from the dividend to 84 and continue with: 840 / 85

Going ahead to step 3:
If we divide 840 by 85, we get 9 and a remainder of 75.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 765 from 840, we get 75.
Grab the next digit (6) from the dividend, add it to 75, then carry on: 756 / 85

Step 4:
When dividing 756 by 85, we get 8 with a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
The remainder is 76 after subtracting 680 from 756.
Bring next digit (6) of the dividend behind the 76 and repeat the process: 766 / 85

On to step 5:
85 can be fit into 766 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 989.0
Subtract 765 from 766 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 85

Moving on to step 6:
When dividing 14 by 85, we get 0 with a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 9890.0
If we subtract 0 from 14, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
The number 85 fits into 140 1 times, leaving a remainder of 55.
Write down 1 as next digit of the result. 
Result so far: 9890.1
Deduct 85 from 140 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.

On to step 8:
85 can be fit into 550 6 times, resulting in a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 9890.16
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.

Advancing to step 9:
400 divided by 85 is 4 with a remainder of 60.
The number 4 becomes the next digit in our result. 
Result so far: 9890.164
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.

Moving on to step 10:
When dividing 600 by 85, we get 7 with a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 9890.1647
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.

Moving on to step 11:
When dividing 50 by 85, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 9890.1647
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 12:
85 can be fit into 500 5 times, resulting in a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 9890.164705
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.

Advancing to step 13:
85 goes into 750 8 times with a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 9890.1647058
If we take 680 away from 750, we end up with 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 14:
When dividing 700 by 85, we get 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 9890.16470588
If we take 680 away from 700, we end up 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.

The final result is 9890.16470588 with a remainder of 2e-08.