72665511 divided by 20 
Let's see how many times 20 fits into 72665511.

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
If we subtract 0 from 7, we get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 20

On to step 2:
If we divide 72 by 20, we get 3 and a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 60 from 72, we get 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 20

Advancing to step 3:
If we divide 126 by 20, we get 6 and a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
If we take 120 away from 126, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 20

Advancing to step 4:
The number 20 fits into 66 3 times, leaving a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 363.0
Subtract 60 from 66 to get 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 20

Moving on to step 5:
When dividing 65 by 20, we get 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 3633.0
If we take 60 away from 65, we end up with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 20

Going ahead to step 6:
20 goes into 55 2 times with a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 36332.0
Subtracting 40 from 55 leaves us with 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 20

Step 7:
20 can be fit into 151 7 times, resulting in a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 363327.0
If we subtract 140 from 151, we get 11.
Fetch the next digit (1) from the dividend, attach it to 11 and continue: 111 / 20

Moving on to step 8:
If we divide 111 by 20, we get 5 and a remainder of 11.
The next digit of our result is 5. 
Result so far: 3633275.0
If we subtract 100 from 111, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
20 goes into 110 5 times with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 3633275.5
Subtract 100 from 110 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 10:
20 goes into 100 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 3633275.55
Subtracting 100 from 100 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.

Our division results in 3633275.55 with a remaining 0.0.