698639 ÷ 80 
The aim is to understand the frequency of 80 in 698639.

Going ahead to step 1:
The number 80 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 80

Moving on to step 2:
If we divide 69 by 80, we get 0 and a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 69 to get 69.
Fetch the next digit (8) from the dividend, attach it to 69 and continue: 698 / 80

Going ahead to step 3:
When dividing 698 by 80, we get 8 with a remainder of 58.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 640 from 698 to get 58.
Bring next digit (6) of the dividend behind the 58 and repeat the process: 586 / 80

Let's proceed to step 4:
If we divide 586 by 80, we get 7 and a remainder of 26.
Put 7 as the next digit of the answer. 
Result so far: 87.0
Deduct 560 from 586 and we're left with 26.
Bring next digit (3) of the dividend behind the 26 and repeat the process: 263 / 80

Advancing to step 5:
80 can be fit into 263 3 times, resulting in a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 873.0
Subtract 240 from 263 to get 23.
Take the next digit (9) from the dividend and append it to 23, then repeat: 239 / 80

Let's proceed to step 6:
80 can be fit into 239 2 times, resulting in a remainder of 79.
Record the quotient 2 as the next digit in the result. 
Result so far: 8732.0
Subtracting 160 from 239 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 7:
When dividing 790 by 80, we get 9 with a remainder of 70.
Put 9 as the next digit of the answer. 
Result so far: 8732.9
The remainder is 70 after subtracting 720 from 790.
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 8:
80 goes into 700 8 times with a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 8732.98
If we subtract 640 from 700, we get 60.
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 9:
80 goes into 600 7 times with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 8732.987
If we subtract 560 from 600, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 8732.9875
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.

Let's proceed to step 11:
0 divided by 80 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8732.9875
Subtract 0 from 0 to 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.

Moving on to step 12:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8732.9875
If we take 0 away from 0, 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.

In conclusion, the division gives 8732.9875 with a balance of 0.0.