We're dividing 783639 by 40 
Our goal is to divide 783639 by 40.

Let's proceed to step 1:
The number 40 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 40

Step 2:
78 divided by 40 is 1 with a remainder of 38.
The next digit of our result is 1. 
Result so far: 1.0
If we take 40 away from 78, we end up with 38.
Append the next digit (3) from the dividend to 38 and continue with: 383 / 40

Let's proceed to step 3:
40 can be fit into 383 9 times, resulting in a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 360 from 383 to get 23.
Include the next digit (6) from the dividend after 23, then repeat: 236 / 40

Moving on to step 4:
40 goes into 236 5 times with a remainder of 36.
Use 5 as the next digit of our solution. 
Result so far: 195.0
If we take 200 away from 236, we end up with 36.
Take the next digit (3) from the dividend and append it to 36, then repeat: 363 / 40

On to step 5:
The number 40 fits into 363 9 times, leaving a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 1959.0
Subtracting 360 from 363 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 40

On to step 6:
39 divided by 40 is 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 19590.0
If we subtract 0 from 39, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 7:
40 goes into 390 9 times with a remainder of 30.
The next digit of our result is 9. 
Result so far: 19590.9
Deduct 360 from 390 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
40 can be fit into 300 7 times, resulting in a remainder of 20.
Record the quotient 7 as the next digit in the result. 
Result so far: 19590.97
Subtract 280 from 300 to 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.

Going ahead to step 9:
When dividing 200 by 40, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 19590.975
Subtract 200 from 200 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 10:
The number 40 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 19590.975
The remainder is 0 after subtracting 0 from 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:
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: 19590.975
Subtract 0 from 0 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.

After the division, we end up with 19590.975 and a remainder of 0.0.