We're dividing 810901 by 80 
The aim is to understand the frequency of 80 in 810901.

Step 1:
If we divide 8 by 80, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 80

Going ahead to step 2:
81 divided by 80 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 80 from 81, we get 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 80

Advancing to step 3:
80 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 10 to get 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 80

Let's proceed to step 4:
If we divide 109 by 80, we get 1 and a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 101.0
Subtracting 80 from 109 leaves us with 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 80

Going ahead to step 5:
80 goes into 290 3 times with a remainder of 50.
Write down 3 as next digit of the result. 
Result so far: 1013.0
The remainder is 50 after subtracting 240 from 290.
Take the next digit (1) from the dividend and append it to 50, then repeat: 501 / 80

Let's proceed to step 6:
80 goes into 501 6 times with a remainder of 21.
Write down 6 as next digit of the result. 
Result so far: 10136.0
If we take 480 away from 501, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 7:
If we divide 210 by 80, we get 2 and a remainder of 50.
The next digit of our result is 2. 
Result so far: 10136.2
Subtracting 160 from 210 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
80 can be fit into 500 6 times, resulting in a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 10136.26
If we subtract 480 from 500, 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.

Moving on to step 9:
80 goes into 200 2 times with a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 10136.262
Subtract 160 from 200 to 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.

Going ahead to step 10:
80 goes into 400 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 10136.2625
The remainder is 0 after subtracting 400 from 400.
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.
Record the quotient 0 as the next digit in the result. 
Result so far: 10136.2625
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.

Let's proceed to step 12:
80 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10136.2625
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.

In conclusion, the division gives 10136.2625 with a balance of 0.0.