40253933 divided by 20 
Our goal is to divide 40253933 by 20.

Let's proceed to step 1:
4 divided by 20 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 20

Advancing to step 2:
20 can be fit into 40 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 40 from 40 and we're left with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 20

Step 3:
20 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtract 0 from 2 to get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 20

Going ahead to step 4:
20 can be fit into 25 1 times, resulting in a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 201.0
If we subtract 20 from 25, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 20

Moving on to step 5:
20 goes into 53 2 times with a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 2012.0
Subtracting 40 from 53 leaves us with 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 20

Let's proceed to step 6:
20 goes into 139 6 times with a remainder of 19.
Record the quotient 6 as the next digit in the result. 
Result so far: 20126.0
Subtracting 120 from 139 leaves us with 19.
Grab the next digit (3) from the dividend, add it to 19, then carry on: 193 / 20

Step 7:
193 divided by 20 is 9 with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 201269.0
If we subtract 180 from 193, we get 13.
Append the next digit (3) from the dividend to 13 and continue with: 133 / 20

On to step 8:
If we divide 133 by 20, we get 6 and a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 2012696.0
Deduct 120 from 133 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
When dividing 130 by 20, we get 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 2012696.6
If we subtract 120 from 130, 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.

Moving on to step 10:
20 goes into 100 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 2012696.65
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.

Let's proceed to step 11:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 2012696.65
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.

Let's proceed to step 12:
20 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2012696.65
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 2012696.65 with a remaining 0.0.