Let's divide 720641 by 20
We're looking to find how many times 20 goes into 720641.

Let's proceed to step 1:
20 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 20

Step 2:
72 divided by 20 is 3 with a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 60 from 72 to get 12.
Append the next digit (0) from the dividend to 12 and continue with: 120 / 20

Step 3:
When dividing 120 by 20, we get 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
Subtract 120 from 120 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 20

Step 4:
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: 360.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 20

Moving on to step 5:
If we divide 64 by 20, we get 3 and a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 3603.0
If we take 60 away from 64, we end up with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 20

Going ahead to step 6:
If we divide 41 by 20, we get 2 and a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 36032.0
If we subtract 40 from 41, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
20 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 36032.0
Subtracting 0 from 10 leaves us with 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:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 36032.05
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.

Going ahead to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 36032.05
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.

Advancing to step 10:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36032.05
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.

The final result is 36032.05 with a remainder of 0.0.