53804953 ÷ 40 
We want to divide 53804953 by 40.

Advancing to step 1:
If we divide 5 by 40, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 40

Going ahead to step 2:
If we divide 53 by 40, we get 1 and a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 40 from 53, we get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 40

Let's proceed to step 3:
If we divide 138 by 40, we get 3 and a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 120 from 138 to get 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 40

On to step 4:
180 divided by 40 is 4 with a remainder of 20.
The next digit of our result is 4. 
Result so far: 134.0
The remainder is 20 after subtracting 160 from 180.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 40

Step 5:
The number 40 fits into 204 5 times, leaving a remainder of 4.
The next digit of our result is 5. 
Result so far: 1345.0
If we subtract 200 from 204, we get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 40

Let's proceed to step 6:
When dividing 49 by 40, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 13451.0
The remainder is 9 after subtracting 40 from 49.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 40

Advancing to step 7:
The number 40 fits into 95 2 times, leaving a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 134512.0
Subtract 80 from 95 to get 15.
Include the next digit (3) from the dividend after 15, then repeat: 153 / 40

On to step 8:
40 goes into 153 3 times with a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 1345123.0
Subtract 120 from 153 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 9:
The number 40 fits into 330 8 times, leaving a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 1345123.8
Subtracting 320 from 330 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.

Advancing to step 10:
100 divided by 40 is 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 1345123.82
Subtracting 80 from 100 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
The number 40 fits into 200 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 1345123.825
The remainder is 0 after subtracting 200 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 12:
40 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1345123.825
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.

Going ahead to step 13:
40 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: 1345123.825
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.

After the division, we end up with 1345123.825 and a remainder of 0.0.