We're dividing 663699 by 40 
Let's see how many times 40 fits into 663699.

Step 1:
When dividing 6 by 40, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 40

Advancing to step 2:
When dividing 66 by 40, we get 1 with a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 40 away from 66, we end up with 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 40

Let's proceed to step 3:
40 goes into 263 6 times with a remainder of 23.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtract 240 from 263 to get 23.
Take the next digit (6) from the dividend and append it to 23, then repeat: 236 / 40

Let's proceed to step 4:
40 can be fit into 236 5 times, resulting in a remainder of 36.
Write down 5 as next digit of the result. 
Result so far: 165.0
Subtracting 200 from 236 leaves us with 36.
Bring next digit (9) of the dividend behind the 36 and repeat the process: 369 / 40

Going ahead to step 5:
When dividing 369 by 40, we get 9 with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 1659.0
Subtracting 360 from 369 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 40

Advancing to step 6:
When dividing 99 by 40, we get 2 with a remainder of 19.
Put 2 as the next digit of the answer. 
Result so far: 16592.0
If we take 80 away from 99, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 7:
40 goes into 190 4 times with a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 16592.4
Subtracting 160 from 190 leaves us 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.

On to step 8:
300 divided by 40 is 7 with a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 16592.47
If we subtract 280 from 300, 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.

Going ahead to step 9:
40 goes into 200 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 16592.475
Subtracting 200 from 200 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.

Advancing to step 10:
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: 16592.475
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.

Step 11:
40 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 16592.475
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.

In conclusion, the division gives 16592.475 with a balance of 0.0.