We're dividing 951582 by 80 
The aim is to understand the frequency of 80 in 951582.

On to step 1:
When dividing 9 by 80, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 80

On to step 2:
80 goes into 95 1 times with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 80 from 95 to get 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 80

On to step 3:
If we divide 151 by 80, we get 1 and a remainder of 71.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 80 from 151 to get 71.
Grab the next digit (5) from the dividend, add it to 71, then carry on: 715 / 80

Let's proceed to step 4:
If we divide 715 by 80, we get 8 and a remainder of 75.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
If we subtract 640 from 715, we get 75.
Include the next digit (8) from the dividend after 75, then repeat: 758 / 80

Let's proceed to step 5:
The number 80 fits into 758 9 times, leaving a remainder of 38.
The next digit of our result is 9. 
Result so far: 1189.0
If we take 720 away from 758, we end up with 38.
Bring next digit (2) of the dividend behind the 38 and repeat the process: 382 / 80

Moving on to step 6:
80 goes into 382 4 times with a remainder of 62.
Put 4 as the next digit of the answer. 
Result so far: 11894.0
The remainder is 62 after subtracting 320 from 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 7:
620 divided by 80 is 7 with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 11894.7
If we take 560 away from 620, 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.

Advancing to step 8:
600 divided by 80 is 7 with a remainder of 40.
The next digit of our result is 7. 
Result so far: 11894.77
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.

After the division, we end up with 11894.77 and a remainder of 0.04.