84457 divided by 80 
We want to divide 84457 by 80.

Advancing to step 1:
When dividing 8 by 80, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 80

Advancing to step 2:
The number 80 fits into 84 1 times, leaving a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 80 from 84 leaves us with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 80

Moving on to step 3:
The number 80 fits into 44 0 times, leaving a remainder of 44.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 44 and we're left with 44.
Append the next digit (5) from the dividend to 44 and continue with: 445 / 80

Going ahead to step 4:
80 can be fit into 445 5 times, resulting in a remainder of 45.
The next digit of our result is 5. 
Result so far: 105.0
Subtracting 400 from 445 leaves us with 45.
Fetch the next digit (7) from the dividend, attach it to 45 and continue: 457 / 80

Let's proceed to step 5:
If we divide 457 by 80, we get 5 and a remainder of 57.
Put 5 as the next digit of the answer. 
Result so far: 1055.0
Deduct 400 from 457 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 6:
570 divided by 80 is 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 1055.7
If we take 560 away from 570, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
80 goes into 100 1 times with a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 1055.71
The remainder is 20 after subtracting 80 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
If we divide 200 by 80, we get 2 and a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 1055.712
The remainder is 40 after subtracting 160 from 200.
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 9:
80 goes into 400 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1055.7125
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 10:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1055.7125
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.

Advancing to step 11:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1055.7125
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 result is 1055.7125 with a remainder of 0.0.