40639230 ÷ 809 
Let's see how many times 809 fits into 40639230.

Advancing to step 1:
When dividing 4 by 809, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 809

Let's proceed to step 2:
809 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Append the next digit (6) from the dividend to 40 and continue with: 406 / 809

Advancing to step 3:
406 divided by 809 is 0 with a remainder of 406.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 406 and we're left with 406.
Grab the next digit (3) from the dividend, add it to 406, then carry on: 4063 / 809

Advancing to step 4:
809 goes into 4063 5 times with a remainder of 18.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 4045 from 4063 to get 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 809

Advancing to step 5:
809 goes into 189 0 times with a remainder of 189.
Write down 0 as next digit of the result. 
Result so far: 50.0
Subtracting 0 from 189 leaves us with 189.
Append the next digit (2) from the dividend to 189 and continue with: 1892 / 809

Going ahead to step 6:
If we divide 1892 by 809, we get 2 and a remainder of 274.
The number 2 becomes the next digit in our result. 
Result so far: 502.0
Subtract 1618 from 1892 to get 274.
Bring next digit (3) of the dividend behind the 274 and repeat the process: 2743 / 809

Let's proceed to step 7:
809 can be fit into 2743 3 times, resulting in a remainder of 316.
Put 3 as the next digit of the answer. 
Result so far: 5023.0
Subtract 2427 from 2743 to get 316.
Fetch the next digit (0) from the dividend, attach it to 316 and continue: 3160 / 809

Advancing to step 8:
3160 divided by 809 is 3 with a remainder of 733.
Put 3 as the next digit of the answer. 
Result so far: 50233.0
If we subtract 2427 from 3160, we get 733.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7330, and continue the process.

Let's proceed to step 9:
809 goes into 7330 9 times with a remainder of 49.
Write down 9 as next digit of the result. 
Result so far: 50233.9
Subtract 7281 from 7330 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 10:
The number 809 fits into 490 0 times, leaving a remainder of 490.
The next digit of our result is 0. 
Result so far: 50233.9
Subtracting 0 from 490 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Step 11:
The number 809 fits into 4900 6 times, leaving a remainder of 46.
The next digit of our result is 6. 
Result so far: 50233.906
Subtracting 4854 from 4900 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 12:
When dividing 460 by 809, we get 0 with a remainder of 460.
The number 0 becomes the next digit in our result. 
Result so far: 50233.906
Subtract 0 from 460 to get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 13:
809 goes into 4600 5 times with a remainder of 555.
Record the quotient 5 as the next digit in the result. 
Result so far: 50233.90605
If we take 4045 away from 4600, we end up with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

Step 14:
When dividing 5550 by 809, we get 6 with a remainder of 696.
Use 6 as the next digit of our solution. 
Result so far: 50233.906056
Deduct 4854 from 5550 and we're left with 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

Moving on to step 15:
809 goes into 6960 8 times with a remainder of 488.
Record the quotient 8 as the next digit in the result. 
Result so far: 50233.9060568
If we subtract 6472 from 6960, we get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Going ahead to step 16:
The number 809 fits into 4880 6 times, leaving a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 50233.90605686
Deduct 4854 from 4880 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 50233.90605686 with a balance of 2.6e-08.