394212 ÷ 3 
We're looking to find how many times 3 goes into 394212.

Moving on to step 1:
When dividing 3 by 3, we get 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 3 from 3 to get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 3

Step 2:
3 can be fit into 9 3 times, resulting in a remainder of 0.
The next digit of our result is 3. 
Result so far: 13.0
If we take 9 away from 9, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 3

Let's proceed to step 3:
When dividing 4 by 3, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 131.0
Subtract 3 from 4 to get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 3

Going ahead to step 4:
If we divide 12 by 3, we get 4 and a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 1314.0
Subtracting 12 from 12 leaves us with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 3

Going ahead to step 5:
3 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: 13140.0
Subtract 0 from 1 to get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 3

Step 6:
12 divided by 3 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 131404.0
If we subtract 12 from 12, we 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.

Step 7:
If we divide 0 by 3, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 131404.0
If we take 0 away from 0, 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.

Going ahead to step 8:
0 divided by 3 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 131404.0
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.

In conclusion, the division gives 131404.0 with a balance of 0.0.