We're dividing 512297 by 40 
We're looking to find how many times 40 goes into 512297.

Step 1:
5 divided by 40 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 40

Moving on to step 2:
40 can be fit into 51 1 times, resulting in a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 11 after subtracting 40 from 51.
Append the next digit (2) from the dividend to 11 and continue with: 112 / 40

On to step 3:
40 can be fit into 112 2 times, resulting in a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 32 after subtracting 80 from 112.
Take the next digit (2) from the dividend and append it to 32, then repeat: 322 / 40

Advancing to step 4:
The number 40 fits into 322 8 times, leaving a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 128.0
Subtract 320 from 322 to get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 40

Advancing to step 5:
29 divided by 40 is 0 with a remainder of 29.
The next digit of our result is 0. 
Result so far: 1280.0
Subtracting 0 from 29 leaves us with 29.
Take the next digit (7) from the dividend and append it to 29, then repeat: 297 / 40

Going ahead to step 6:
297 divided by 40 is 7 with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 12807.0
Deduct 280 from 297 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
The number 40 fits into 170 4 times, leaving a remainder of 10.
The next digit of our result is 4. 
Result so far: 12807.4
Subtracting 160 from 170 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.

Moving on to step 8:
When dividing 100 by 40, we get 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 12807.42
If we subtract 80 from 100, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
The number 40 fits into 200 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 12807.425
If we subtract 200 from 200, 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.

Let's proceed to step 10:
0 divided by 40 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12807.425
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.

Going ahead to step 11:
If we divide 0 by 40, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12807.425
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.

The quotient of the division is 12807.425, and the remainder is 0.0.