We divide 543441 by 80
We want to divide 543441 by 80.

On to step 1:
The number 80 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 80

Advancing to step 2:
If we divide 54 by 80, we get 0 and a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Fetch the next digit (3) from the dividend, attach it to 54 and continue: 543 / 80

Step 3:
80 can be fit into 543 6 times, resulting in a remainder of 63.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 480 from 543, we get 63.
Include the next digit (4) from the dividend after 63, then repeat: 634 / 80

Going ahead to step 4:
When dividing 634 by 80, we get 7 with a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 67.0
Subtracting 560 from 634 leaves us with 74.
Grab the next digit (4) from the dividend, add it to 74, then carry on: 744 / 80

Let's proceed to step 5:
The number 80 fits into 744 9 times, leaving a remainder of 24.
Put 9 as the next digit of the answer. 
Result so far: 679.0
The remainder is 24 after subtracting 720 from 744.
Bring next digit (1) of the dividend behind the 24 and repeat the process: 241 / 80

Let's proceed to step 6:
80 can be fit into 241 3 times, resulting in a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 6793.0
Subtract 240 from 241 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
When dividing 10 by 80, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 6793.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
80 goes into 100 1 times with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 6793.01
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.

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: 6793.012
If we take 160 away from 200, we end up 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.

Moving on to step 10:
80 goes into 400 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 6793.0125
Deduct 400 from 400 and we're left 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.

Moving on to step 11:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6793.0125
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.

Going ahead to step 12:
If we divide 0 by 80, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6793.0125
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.

The final result is 6793.0125 with a remainder of 0.0.