We look at the division of 80330410 by 405 
We want to figure out the number of times 80330410 can be divided by 405.

Step 1:
405 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 405

Let's proceed to step 2:
405 can be fit into 80 0 times, resulting in a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Grab the next digit (3) from the dividend, add it to 80, then carry on: 803 / 405

Step 3:
803 divided by 405 is 1 with a remainder of 398.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 405 from 803 and we're left with 398.
Fetch the next digit (3) from the dividend, attach it to 398 and continue: 3983 / 405

Moving on to step 4:
The number 405 fits into 3983 9 times, leaving a remainder of 338.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
The remainder is 338 after subtracting 3645 from 3983.
Take the next digit (0) from the dividend and append it to 338, then repeat: 3380 / 405

Moving on to step 5:
405 goes into 3380 8 times with a remainder of 140.
The number 8 becomes the next digit in our result. 
Result so far: 198.0
If we subtract 3240 from 3380, we get 140.
Bring next digit (4) of the dividend behind the 140 and repeat the process: 1404 / 405

Let's proceed to step 6:
1404 divided by 405 is 3 with a remainder of 189.
Write down 3 as next digit of the result. 
Result so far: 1983.0
If we take 1215 away from 1404, we end up with 189.
Fetch the next digit (1) from the dividend, attach it to 189 and continue: 1891 / 405

Let's proceed to step 7:
1891 divided by 405 is 4 with a remainder of 271.
Write down 4 as next digit of the result. 
Result so far: 19834.0
If we subtract 1620 from 1891, we get 271.
Append the next digit (0) from the dividend to 271 and continue with: 2710 / 405

Advancing to step 8:
If we divide 2710 by 405, we get 6 and a remainder of 280.
Put 6 as the next digit of the answer. 
Result so far: 198346.0
Subtracting 2430 from 2710 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 9:
405 can be fit into 2800 6 times, resulting in a remainder of 370.
The number 6 becomes the next digit in our result. 
Result so far: 198346.6
Subtracting 2430 from 2800 leaves us with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

On to step 10:
3700 divided by 405 is 9 with a remainder of 55.
The next digit of our result is 9. 
Result so far: 198346.69
The remainder is 55 after subtracting 3645 from 3700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 11:
The number 405 fits into 550 1 times, leaving a remainder of 145.
Put 1 as the next digit of the answer. 
Result so far: 198346.691
If we take 405 away from 550, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

On to step 12:
The number 405 fits into 1450 3 times, leaving a remainder of 235.
The number 3 becomes the next digit in our result. 
Result so far: 198346.6913
Subtract 1215 from 1450 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

On to step 13:
405 goes into 2350 5 times with a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 198346.69135
Subtracting 2025 from 2350 leaves us with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 14:
The number 405 fits into 3250 8 times, leaving a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 198346.691358
If we subtract 3240 from 3250, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 15:
When dividing 100 by 405, we get 0 with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 198346.691358
If we take 0 away from 100, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 16:
405 can be fit into 1000 2 times, resulting in a remainder of 190.
Use 2 as the next digit of our solution. 
Result so far: 198346.69135802
Deduct 810 from 1000 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

The final outcome is 198346.69135802, with a leftover of 1.9e-07.