We're dividing 12143342 by 303 
Let's see how many times 303 fits into 12143342.

Advancing to step 1:
303 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 303

Let's proceed to step 2:
303 goes into 12 0 times with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 303

Moving on to step 3:
121 divided by 303 is 0 with a remainder of 121.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 121, we end up with 121.
Take the next digit (4) from the dividend and append it to 121, then repeat: 1214 / 303

Moving on to step 4:
303 can be fit into 1214 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 1212 from 1214, we get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 303

Moving on to step 5:
When dividing 23 by 303, we get 0 with a remainder of 23.
The next digit of our result is 0. 
Result so far: 40.0
Subtract 0 from 23 to get 23.
Fetch the next digit (3) from the dividend, attach it to 23 and continue: 233 / 303

Going ahead to step 6:
When dividing 233 by 303, we get 0 with a remainder of 233.
The next digit of our result is 0. 
Result so far: 400.0
Subtracting 0 from 233 leaves us with 233.
Include the next digit (4) from the dividend after 233, then repeat: 2334 / 303

On to step 7:
The number 303 fits into 2334 7 times, leaving a remainder of 213.
Record the quotient 7 as the next digit in the result. 
Result so far: 4007.0
Deduct 2121 from 2334 and we're left with 213.
Include the next digit (2) from the dividend after 213, then repeat: 2132 / 303

On to step 8:
2132 divided by 303 is 7 with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 40077.0
Subtracting 2121 from 2132 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 9:
The number 303 fits into 110 0 times, leaving a remainder of 110.
Use 0 as the next digit of our solution. 
Result so far: 40077.0
The remainder is 110 after subtracting 0 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 10:
303 goes into 1100 3 times with a remainder of 191.
Write down 3 as next digit of the result. 
Result so far: 40077.03
If we take 909 away from 1100, we end up with 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

On to step 11:
303 can be fit into 1910 6 times, resulting in a remainder of 92.
The number 6 becomes the next digit in our result. 
Result so far: 40077.036
Subtracting 1818 from 1910 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Moving on to step 12:
303 goes into 920 3 times with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 40077.0363
If we take 909 away from 920, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 13:
If we divide 110 by 303, we get 0 and a remainder of 110.
The number 0 becomes the next digit in our result. 
Result so far: 40077.0363
If we subtract 0 from 110, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 14:
303 can be fit into 1100 3 times, resulting in a remainder of 191.
The number 3 becomes the next digit in our result. 
Result so far: 40077.036303
Subtract 909 from 1100 to get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Moving on to step 15:
303 can be fit into 1910 6 times, resulting in a remainder of 92.
The next digit of our result is 6. 
Result so far: 40077.0363036
If we take 1818 away from 1910, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 16:
When dividing 920 by 303, we get 3 with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 40077.03630363
If we take 909 away from 920, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final outcome is 40077.03630363, with a leftover of 1.1e-08.