125519 ÷ 80 
We want to figure out the number of times 125519 can be divided by 80.

Advancing to step 1:
1 divided by 80 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 80

Step 2:
80 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 80

Advancing to step 3:
The number 80 fits into 125 1 times, leaving a remainder of 45.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 80 from 125 leaves us with 45.
Fetch the next digit (5) from the dividend, attach it to 45 and continue: 455 / 80

Going ahead to step 4:
80 goes into 455 5 times with a remainder of 55.
The next digit of our result is 5. 
Result so far: 15.0
The remainder is 55 after subtracting 400 from 455.
Take the next digit (1) from the dividend and append it to 55, then repeat: 551 / 80

Moving on to step 5:
80 can be fit into 551 6 times, resulting in a remainder of 71.
Write down 6 as next digit of the result. 
Result so far: 156.0
The remainder is 71 after subtracting 480 from 551.
Grab the next digit (9) from the dividend, add it to 71, then carry on: 719 / 80

Step 6:
The number 80 fits into 719 8 times, leaving a remainder of 79.
Record the quotient 8 as the next digit in the result. 
Result so far: 1568.0
Subtracting 640 from 719 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Let's proceed to step 7:
When dividing 790 by 80, we get 9 with a remainder of 70.
Write down 9 as next digit of the result. 
Result so far: 1568.9
If we subtract 720 from 790, 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.

Moving on to step 8:
The number 80 fits into 700 8 times, leaving a remainder of 60.
The next digit of our result is 8. 
Result so far: 1568.98
Deduct 640 from 700 and we're left 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.

Step 9:
When dividing 600 by 80, we get 7 with a remainder of 40.
The next digit of our result is 7. 
Result so far: 1568.987
Subtracting 560 from 600 leaves us 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.

Let's proceed to step 10:
If we divide 400 by 80, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 1568.9875
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.

Step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1568.9875
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.

Going ahead to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1568.9875
Subtract 0 from 0 to 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.

In conclusion, the division gives 1568.9875 with a balance of 0.0.