Let's divide 321489 by 3
Our goal is to divide 321489 by 3.

Step 1:
3 goes into 3 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 3 from 3 and we're left with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 3

Step 2:
The number 3 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 2 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 3

Advancing to step 3:
The number 3 fits into 21 7 times, leaving a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 107.0
The remainder is 0 after subtracting 21 from 21.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 3

Moving on to step 4:
3 goes into 4 1 times with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1071.0
Deduct 3 from 4 and we're left with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 3

On to step 5:
3 can be fit into 18 6 times, resulting in a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 10716.0
Subtracting 18 from 18 leaves us 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 next digit of our result is 3. 
Result so far: 107163.0
If we subtract 9 from 9, 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:
The number 3 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 107163.0
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.

Step 8:
The number 3 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 107163.0
Deduct 0 from 0 and we're left 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 quotient of the division is 107163.0, and the remainder is 0.0.