We're dividing 432429 by 3 
We're looking to find how many times 3 goes into 432429.

Going ahead to step 1:
4 divided by 3 is 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 3 from 4 leaves us with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 3

Let's proceed to step 2:
13 divided by 3 is 4 with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we take 12 away from 13, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 3

On to step 3:
3 goes into 12 4 times with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 144.0
Subtract 12 from 12 to get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 3

On to step 4:
3 goes into 4 1 times with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1441.0
Subtracting 3 from 4 leaves us with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 3

Going ahead to step 5:
3 can be fit into 12 4 times, resulting in a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 14414.0
If we take 12 away from 12, we end up with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 3

Going ahead to step 6:
3 goes into 9 3 times with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 144143.0
Subtract 9 from 9 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 7:
3 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 144143.0
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.

Moving on to step 8:
3 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 144143.0
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.

The final outcome is 144143.0, with a leftover of 0.0.