40306309 ÷ 419 
We want to figure out the number of times 40306309 can be divided by 419.

Moving on to step 1:
The number 419 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 419

On to step 2:
The number 419 fits into 40 0 times, leaving a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Take the next digit (3) from the dividend and append it to 40, then repeat: 403 / 419

Let's proceed to step 3:
When dividing 403 by 419, we get 0 with a remainder of 403.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 403 to get 403.
Append the next digit (0) from the dividend to 403 and continue with: 4030 / 419

Advancing to step 4:
When dividing 4030 by 419, we get 9 with a remainder of 259.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 3771 from 4030 leaves us with 259.
Take the next digit (6) from the dividend and append it to 259, then repeat: 2596 / 419

Moving on to step 5:
419 goes into 2596 6 times with a remainder of 82.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
If we take 2514 away from 2596, we end up with 82.
Grab the next digit (3) from the dividend, add it to 82, then carry on: 823 / 419

Going ahead to step 6:
419 goes into 823 1 times with a remainder of 404.
Put 1 as the next digit of the answer. 
Result so far: 961.0
The remainder is 404 after subtracting 419 from 823.
Bring next digit (0) of the dividend behind the 404 and repeat the process: 4040 / 419

On to step 7:
The number 419 fits into 4040 9 times, leaving a remainder of 269.
The next digit of our result is 9. 
Result so far: 9619.0
Subtract 3771 from 4040 to get 269.
Grab the next digit (9) from the dividend, add it to 269, then carry on: 2699 / 419

Step 8:
419 goes into 2699 6 times with a remainder of 185.
Record the quotient 6 as the next digit in the result. 
Result so far: 96196.0
Subtracting 2514 from 2699 leaves us with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 9:
The number 419 fits into 1850 4 times, leaving a remainder of 174.
Put 4 as the next digit of the answer. 
Result so far: 96196.4
Deduct 1676 from 1850 and we're left with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Let's proceed to step 10:
When dividing 1740 by 419, we get 4 with a remainder of 64.
The next digit of our result is 4. 
Result so far: 96196.44
The remainder is 64 after subtracting 1676 from 1740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final outcome is 96196.44, with a leftover of 0.064.