243345 ÷ 2 
We're looking to find how many times 2 goes into 243345.

Moving on to step 1:
The number 2 fits into 2 1 times, leaving a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 2 away from 2, we end up with 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 2

Going ahead to step 2:
The number 2 fits into 4 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 4 from 4 and we're left with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 2

Advancing to step 3:
3 divided by 2 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
If we take 2 away from 3, we end up with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 2

Moving on to step 4:
When dividing 13 by 2, we get 6 with a remainder of 1.
The next digit of our result is 6. 
Result so far: 1216.0
Subtracting 12 from 13 leaves us with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 2

Moving on to step 5:
2 goes into 14 7 times with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 12167.0
If we take 14 away from 14, we end up with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 2

Moving on to step 6:
5 divided by 2 is 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 121672.0
If we subtract 4 from 5, we 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.

Advancing to step 7:
2 can be fit into 10 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 121672.5
If we take 10 away from 10, 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.

Step 8:
2 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 121672.5
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.

Advancing to step 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 121672.5
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 121672.5 with a remainder of 0.0.