128234 divided by 80 
The aim is to understand the frequency of 80 in 128234.

On to step 1:
When dividing 1 by 80, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 80

Going ahead to step 2:
12 divided by 80 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 80

Moving on to step 3:
80 can be fit into 128 1 times, resulting in a remainder of 48.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 80 from 128 to get 48.
Fetch the next digit (2) from the dividend, attach it to 48 and continue: 482 / 80

Advancing to step 4:
The number 80 fits into 482 6 times, leaving a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 480 from 482 leaves us with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 80

On to step 5:
80 goes into 23 0 times with a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 160.0
If we take 0 away from 23, we end up with 23.
Include the next digit (4) from the dividend after 23, then repeat: 234 / 80

Advancing to step 6:
When dividing 234 by 80, we get 2 with a remainder of 74.
The number 2 becomes the next digit in our result. 
Result so far: 1602.0
The remainder is 74 after subtracting 160 from 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 7:
If we divide 740 by 80, we get 9 and a remainder of 20.
Put 9 as the next digit of the answer. 
Result so far: 1602.9
If we subtract 720 from 740, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
If we divide 200 by 80, we get 2 and a remainder of 40.
The next digit of our result is 2. 
Result so far: 1602.92
If we subtract 160 from 200, 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 9:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 1602.925
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 10:
0 divided by 80 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1602.925
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.

Moving on 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: 1602.925
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.

The quotient of the division is 1602.925, and the remainder is 0.0.