We look at the division of 321606 by 20 
We want to figure out the number of times 321606 can be divided by 20.

Advancing to step 1:
The number 20 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 20

Advancing to step 2:
When dividing 32 by 20, we get 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 20 from 32, we get 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 20

Going ahead to step 3:
The number 20 fits into 121 6 times, leaving a remainder of 1.
The next digit of our result is 6. 
Result so far: 16.0
If we take 120 away from 121, we end up with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 20

Going ahead to step 4:
The number 20 fits into 16 0 times, leaving a remainder of 16.
The next digit of our result is 0. 
Result so far: 160.0
If we take 0 away from 16, we end up with 16.
Bring next digit (0) of the dividend behind the 16 and repeat the process: 160 / 20

Let's proceed to step 5:
20 goes into 160 8 times with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 1608.0
Deduct 160 from 160 and we're left with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 20

On to step 6:
If we divide 6 by 20, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 16080.0
Subtract 0 from 6 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
If we divide 60 by 20, we get 3 and a remainder of 0.
The next digit of our result is 3. 
Result so far: 16080.3
If we subtract 60 from 60, 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.

Let's proceed to step 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16080.3
Subtracting 0 from 0 leaves us 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 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 16080.3
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 16080.3 with a remaining 0.0.