We divide 243742 by 45
We want to figure out the number of times 243742 can be divided by 45.

Advancing to step 1:
The number 45 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 45

Step 2:
If we divide 24 by 45, we get 0 and a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 24 and we're left with 24.
Include the next digit (3) from the dividend after 24, then repeat: 243 / 45

Step 3:
45 goes into 243 5 times with a remainder of 18.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 225 from 243 leaves us with 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 45

Going ahead to step 4:
45 goes into 187 4 times with a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 54.0
If we take 180 away from 187, we end up with 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 45

Advancing to step 5:
45 can be fit into 74 1 times, resulting in a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 541.0
Subtracting 45 from 74 leaves us with 29.
Take the next digit (2) from the dividend and append it to 29, then repeat: 292 / 45

Step 6:
45 can be fit into 292 6 times, resulting in a remainder of 22.
Put 6 as the next digit of the answer. 
Result so far: 5416.0
If we subtract 270 from 292, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 7:
45 can be fit into 220 4 times, resulting in a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 5416.4
Subtracting 180 from 220 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.

Moving on to step 8:
When dividing 400 by 45, we get 8 with a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 5416.48
Deduct 360 from 400 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.

Advancing to step 9:
If we divide 400 by 45, we get 8 and a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 5416.488
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 5416.488, with a leftover of 0.004.