We look at the division of 840827 by 80 
The aim is to understand the frequency of 80 in 840827.

Step 1:
80 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 80

Advancing to step 2:
When dividing 84 by 80, we get 1 with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 80 away from 84, we end up with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 80

On to step 3:
If we divide 40 by 80, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 40, we get 40.
Grab the next digit (8) from the dividend, add it to 40, then carry on: 408 / 80

Advancing to step 4:
80 goes into 408 5 times with a remainder of 8.
The next digit of our result is 5. 
Result so far: 105.0
The remainder is 8 after subtracting 400 from 408.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 80

Going ahead to step 5:
When dividing 82 by 80, we get 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1051.0
Subtract 80 from 82 to get 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 80

On to step 6:
80 goes into 27 0 times with a remainder of 27.
The next digit of our result is 0. 
Result so far: 10510.0
If we subtract 0 from 27, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
270 divided by 80 is 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 10510.3
If we subtract 240 from 270, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
300 divided by 80 is 3 with a remainder of 60.
Use 3 as the next digit of our solution. 
Result so far: 10510.33
If we take 240 away from 300, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 10510.33, with a leftover of 0.06.