We look at the division of 646201 by 20 
We want to divide 646201 by 20.

Going ahead to step 1:
20 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 20

Going ahead to step 2:
When dividing 64 by 20, we get 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 4 after subtracting 60 from 64.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 20

Let's proceed to step 3:
When dividing 46 by 20, we get 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 32.0
Subtracting 40 from 46 leaves us with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 20

Going ahead to step 4:
The number 20 fits into 62 3 times, leaving a remainder of 2.
The next digit of our result is 3. 
Result so far: 323.0
If we subtract 60 from 62, we get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 20

Step 5:
If we divide 20 by 20, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 3231.0
Deduct 20 from 20 and we're left with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 20

Moving on to step 6:
When dividing 1 by 20, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 32310.0
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.

Step 7:
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: 32310.0
Subtract 0 from 10 to 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:
100 divided by 20 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 32310.05
Subtract 100 from 100 to 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:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 32310.05
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.

On to step 10:
20 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 32310.05
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 final result is 32310.05 with a remainder of 0.0.