Let's divide 321001 by 20
We want to divide 321001 by 20.

On to step 1:
The number 20 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 20

On to step 2:
20 can be fit into 32 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 20 from 32 leaves us with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 20

Going ahead to step 3:
20 can be fit into 121 6 times, resulting in a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
If we take 120 away from 121, we end up with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 20

Going ahead to step 4:
When dividing 10 by 20, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 160.0
Deduct 0 from 10 and we're left with 10.
Fetch the next digit (0) from the dividend, attach it to 10 and continue: 100 / 20

Step 5:
20 goes into 100 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1605.0
If we subtract 100 from 100, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 20

Moving on to step 6:
When dividing 1 by 20, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 16050.0
Deduct 0 from 1 and we're left 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 7:
When dividing 10 by 20, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 16050.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 16050.05
If we subtract 100 from 100, 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.

Advancing to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 16050.05
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.

On to step 10:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 16050.05
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.

The quotient of the division is 16050.05, and the remainder is 0.0.