We're dividing 28690 by 80 
The aim is to understand the frequency of 80 in 28690.

On to step 1:
When dividing 2 by 80, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 80

Going ahead to step 2:
80 can be fit into 28 0 times, resulting in a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Append the next digit (6) from the dividend to 28 and continue with: 286 / 80

Advancing to step 3:
80 can be fit into 286 3 times, resulting in a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 240 from 286 to get 46.
Take the next digit (9) from the dividend and append it to 46, then repeat: 469 / 80

Step 4:
If we divide 469 by 80, we get 5 and a remainder of 69.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
Subtracting 400 from 469 leaves us with 69.
Include the next digit (0) from the dividend after 69, then repeat: 690 / 80

Moving on to step 5:
The number 80 fits into 690 8 times, leaving a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 358.0
Subtract 640 from 690 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 6:
80 can be fit into 500 6 times, resulting in a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 358.6
Subtracting 480 from 500 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 358.62
Deduct 160 from 200 and we're left 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.

Going ahead to step 8:
When dividing 400 by 80, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 358.625
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.

On to step 9:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 358.625
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.

Let's proceed to step 10:
If we divide 0 by 80, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 358.625
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.

The final outcome is 358.625, with a leftover of 0.0.