We divide 609535 by 80
The aim is to understand the frequency of 80 in 609535.

Advancing to step 1:
6 divided by 80 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 80

Going ahead to step 2:
If we divide 60 by 80, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 60, we get 60.
Include the next digit (9) from the dividend after 60, then repeat: 609 / 80

Step 3:
80 can be fit into 609 7 times, resulting in a remainder of 49.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 49 after subtracting 560 from 609.
Append the next digit (5) from the dividend to 49 and continue with: 495 / 80

Step 4:
80 goes into 495 6 times with a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 76.0
If we subtract 480 from 495, we get 15.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 80

Step 5:
If we divide 153 by 80, we get 1 and a remainder of 73.
Record the quotient 1 as the next digit in the result. 
Result so far: 761.0
The remainder is 73 after subtracting 80 from 153.
Fetch the next digit (5) from the dividend, attach it to 73 and continue: 735 / 80

Advancing to step 6:
If we divide 735 by 80, we get 9 and a remainder of 15.
Write down 9 as next digit of the result. 
Result so far: 7619.0
If we take 720 away from 735, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
150 divided by 80 is 1 with a remainder of 70.
The number 1 becomes the next digit in our result. 
Result so far: 7619.1
If we subtract 80 from 150, we get 70.
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:
The number 80 fits into 700 8 times, leaving a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 7619.18
If we take 640 away from 700, we end up 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.

Moving on to step 9:
80 can be fit into 600 7 times, resulting in a remainder of 40.
The next digit of our result is 7. 
Result so far: 7619.187
Deduct 560 from 600 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.

Advancing to step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 7619.1875
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.

Step 11:
80 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7619.1875
Subtracting 0 from 0 leaves us 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.

Advancing 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: 7619.1875
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.

After the division, we end up with 7619.1875 and a remainder of 0.0.