We divide 243742 by 80
Our goal is to divide 243742 by 80.

Let's proceed to step 1:
The number 80 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 80

Advancing to step 2:
80 goes into 24 0 times with a remainder of 24.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 24 to get 24.
Include the next digit (3) from the dividend after 24, then repeat: 243 / 80

Let's proceed to step 3:
If we divide 243 by 80, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 240 from 243 leaves us with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 80

On to step 4:
80 goes into 37 0 times with a remainder of 37.
Write down 0 as next digit of the result. 
Result so far: 30.0
Subtract 0 from 37 to get 37.
Grab the next digit (4) from the dividend, add it to 37, then carry on: 374 / 80

Let's proceed to step 5:
If we divide 374 by 80, we get 4 and a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 304.0
If we take 320 away from 374, we end up with 54.
Append the next digit (2) from the dividend to 54 and continue with: 542 / 80

Advancing to step 6:
80 goes into 542 6 times with a remainder of 62.
Put 6 as the next digit of the answer. 
Result so far: 3046.0
The remainder is 62 after subtracting 480 from 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 7:
The number 80 fits into 620 7 times, leaving a remainder of 60.
The next digit of our result is 7. 
Result so far: 3046.7
Deduct 560 from 620 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.

Going ahead to step 8:
80 goes into 600 7 times with a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 3046.77
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The quotient of the division is 3046.77, and the remainder is 0.04.