We look at the division of 321505 by 3 
Our goal is to divide 321505 by 3.

Going ahead to 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
If we subtract 3 from 3, we get 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 3

Advancing to step 2:
3 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 3

Advancing to step 3:
3 goes into 21 7 times with 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.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 3

Going ahead to step 4:
3 goes into 5 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1071.0
Deduct 3 from 5 and we're left with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 3

Let's proceed to step 5:
The number 3 fits into 20 6 times, leaving a remainder of 2.
The next digit of our result is 6. 
Result so far: 10716.0
Deduct 18 from 20 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 3

Step 6:
3 goes into 25 8 times with a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 107168.0
The remainder is 1 after subtracting 24 from 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
3 can be fit into 10 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 107168.3
If we take 9 away from 10, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 8:
3 can be fit into 10 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 107168.33
Subtracting 9 from 10 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 107168.33 with a remaining 0.001.