398274 ÷ 3 
Let's see how many times 3 fits into 398274.

On to step 1:
When dividing 3 by 3, we get 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 0 after subtracting 3 from 3.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 3

Let's proceed to step 2:
3 goes into 9 3 times with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 9 away from 9, we end up with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 3

Step 3:
3 goes into 8 2 times with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 132.0
If we take 6 away from 8, we end up with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 3

On to step 4:
3 goes into 22 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 1327.0
Subtracting 21 from 22 leaves us with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 3

Step 5:
The number 3 fits into 17 5 times, leaving a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 13275.0
If we take 15 away from 17, we end up with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 3

Let's proceed to step 6:
If we divide 24 by 3, we get 8 and a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 132758.0
The remainder is 0 after subtracting 24 from 24.
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 7:
3 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 132758.0
The remainder is 0 after subtracting 0 from 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 8:
0 divided by 3 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 132758.0
The remainder is 0 after subtracting 0 from 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 outcome is 132758.0, with a leftover of 0.0.