990059 ÷ 80 
The aim is to understand the frequency of 80 in 990059.

Step 1:
80 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 80

Going ahead to step 2:
99 divided by 80 is 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 80 from 99 and we're left with 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 80

Going ahead to step 3:
80 can be fit into 190 2 times, resulting in a remainder of 30.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 30 after subtracting 160 from 190.
Take the next digit (0) from the dividend and append it to 30, then repeat: 300 / 80

Let's proceed to step 4:
80 can be fit into 300 3 times, resulting in a remainder of 60.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
Subtract 240 from 300 to get 60.
Fetch the next digit (5) from the dividend, attach it to 60 and continue: 605 / 80

On to step 5:
80 goes into 605 7 times with a remainder of 45.
Use 7 as the next digit of our solution. 
Result so far: 1237.0
Deduct 560 from 605 and we're left with 45.
Include the next digit (9) from the dividend after 45, then repeat: 459 / 80

Going ahead to step 6:
80 goes into 459 5 times with a remainder of 59.
Write down 5 as next digit of the result. 
Result so far: 12375.0
If we subtract 400 from 459, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 7:
The number 80 fits into 590 7 times, leaving a remainder of 30.
Write down 7 as next digit of the result. 
Result so far: 12375.7
Subtracting 560 from 590 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
80 can be fit into 300 3 times, resulting in a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 12375.73
Subtracting 240 from 300 leaves us 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.

Step 9:
600 divided by 80 is 7 with a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 12375.737
If we take 560 away from 600, we end up 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.

On to step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 12375.7375
If we subtract 400 from 400, 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.

Going ahead to step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12375.7375
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 12:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 12375.7375
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 12375.7375 with a balance of 0.0.