243978 divided by 45 
We want to divide 243978 by 45.

Going ahead to step 1:
When dividing 2 by 45, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 45

Let's proceed to step 2:
45 can be fit into 24 0 times, resulting in a remainder of 24.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 24 to get 24.
Append the next digit (3) from the dividend to 24 and continue with: 243 / 45

Moving on to step 3:
If we divide 243 by 45, we get 5 and a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 225 away from 243, we end up with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 45

Going ahead to step 4:
189 divided by 45 is 4 with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 54.0
Subtract 180 from 189 to get 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 45

Advancing to step 5:
If we divide 97 by 45, we get 2 and a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 542.0
Subtracting 90 from 97 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 45

Step 6:
45 can be fit into 78 1 times, resulting in a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 5421.0
If we take 45 away from 78, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 7:
The number 45 fits into 330 7 times, leaving a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 5421.7
Deduct 315 from 330 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
45 can be fit into 150 3 times, resulting in a remainder of 15.
The next digit of our result is 3. 
Result so far: 5421.73
If we take 135 away from 150, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
45 can be fit into 150 3 times, resulting in a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 5421.733
Deduct 135 from 150 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final result is 5421.733 with a remainder of 0.0015.