We look at the division of 706839 by 80 
The aim is to understand the frequency of 80 in 706839.

Moving on to step 1:
When dividing 7 by 80, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 80

Advancing to step 2:
80 goes into 70 0 times with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Include the next digit (6) from the dividend after 70, then repeat: 706 / 80

On to step 3:
The number 80 fits into 706 8 times, leaving a remainder of 66.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 640 from 706, we get 66.
Grab the next digit (8) from the dividend, add it to 66, then carry on: 668 / 80

Step 4:
668 divided by 80 is 8 with a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 88.0
Deduct 640 from 668 and we're left with 28.
Grab the next digit (3) from the dividend, add it to 28, then carry on: 283 / 80

Advancing to step 5:
When dividing 283 by 80, we get 3 with a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 883.0
If we take 240 away from 283, we end up with 43.
Grab the next digit (9) from the dividend, add it to 43, then carry on: 439 / 80

On to step 6:
80 goes into 439 5 times with a remainder of 39.
Use 5 as the next digit of our solution. 
Result so far: 8835.0
If we subtract 400 from 439, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 7:
390 divided by 80 is 4 with a remainder of 70.
Record the quotient 4 as the next digit in the result. 
Result so far: 8835.4
The remainder is 70 after subtracting 320 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 8:
80 goes into 700 8 times with a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 8835.48
If we take 640 away from 700, 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.

On to step 9:
80 goes into 600 7 times with a remainder of 40.
The next digit of our result is 7. 
Result so far: 8835.487
The remainder is 40 after subtracting 560 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 8835.4875
If we take 400 away from 400, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
80 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8835.4875
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 8835.4875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 8835.4875, with a leftover of 0.0.