We look at the division of 120941 by 3 
Let's see how many times 3 fits into 120941.

Advancing to step 1:
The number 3 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 3

Going ahead to step 2:
When dividing 12 by 3, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 12 from 12 and we're left with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 3

Moving on to step 3:
0 divided by 3 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 40.0
The remainder is 0 after subtracting 0 from 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 3

Advancing to step 4:
If we divide 9 by 3, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 403.0
Subtracting 9 from 9 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 3

Moving on to step 5:
3 can be fit into 4 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 4031.0
Deduct 3 from 4 and we're left with 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 3

Let's proceed to step 6:
If we divide 11 by 3, we get 3 and a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 40313.0
Subtracting 9 from 11 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
The number 3 fits into 20 6 times, leaving a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 40313.6
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
3 can be fit into 20 6 times, resulting in a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 40313.66
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 40313.66 with a remainder of 0.002.