321153 divided by 15 
Let's see how many times 15 fits into 321153.

Step 1:
15 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 15

Advancing to step 2:
The number 15 fits into 32 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 30 away from 32, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 15

Let's proceed to step 3:
If we divide 21 by 15, we get 1 and a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 15 from 21 to get 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 15

Advancing to step 4:
15 goes into 61 4 times with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 214.0
Deduct 60 from 61 and we're left with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 15

Step 5:
15 can be fit into 15 1 times, resulting in a remainder of 0.
The next digit of our result is 1. 
Result so far: 2141.0
The remainder is 0 after subtracting 15 from 15.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 15

Going ahead to step 6:
If we divide 3 by 15, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 21410.0
If we subtract 0 from 3, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
If we divide 30 by 15, we get 2 and a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 21410.2
If we take 30 away from 30, 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.

Advancing to step 8:
If we divide 0 by 15, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 21410.2
If we subtract 0 from 0, 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 9:
0 divided by 15 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 21410.2
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.

Our division results in 21410.2 with a remaining 0.0.