40149591 divided by 405 
Let's see how many times 405 fits into 40149591.

Moving on to step 1:
405 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 405

Step 2:
When dividing 40 by 405, we get 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Grab the next digit (1) from the dividend, add it to 40, then carry on: 401 / 405

Advancing to step 3:
405 can be fit into 401 0 times, resulting in a remainder of 401.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 401 after subtracting 0 from 401.
Grab the next digit (4) from the dividend, add it to 401, then carry on: 4014 / 405

On to step 4:
The number 405 fits into 4014 9 times, leaving a remainder of 369.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 3645 from 4014 and we're left with 369.
Take the next digit (9) from the dividend and append it to 369, then repeat: 3699 / 405

Advancing to step 5:
405 goes into 3699 9 times with a remainder of 54.
Use 9 as the next digit of our solution. 
Result so far: 99.0
The remainder is 54 after subtracting 3645 from 3699.
Fetch the next digit (5) from the dividend, attach it to 54 and continue: 545 / 405

On to step 6:
545 divided by 405 is 1 with a remainder of 140.
Put 1 as the next digit of the answer. 
Result so far: 991.0
If we take 405 away from 545, we end up with 140.
Append the next digit (9) from the dividend to 140 and continue with: 1409 / 405

Advancing to step 7:
405 goes into 1409 3 times with a remainder of 194.
The next digit of our result is 3. 
Result so far: 9913.0
Subtract 1215 from 1409 to get 194.
Grab the next digit (1) from the dividend, add it to 194, then carry on: 1941 / 405

Step 8:
If we divide 1941 by 405, we get 4 and a remainder of 321.
The next digit of our result is 4. 
Result so far: 99134.0
If we subtract 1620 from 1941, we get 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Moving on to step 9:
405 goes into 3210 7 times with a remainder of 375.
Use 7 as the next digit of our solution. 
Result so far: 99134.7
The remainder is 375 after subtracting 2835 from 3210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 10:
3750 divided by 405 is 9 with a remainder of 105.
Put 9 as the next digit of the answer. 
Result so far: 99134.79
Subtract 3645 from 3750 to get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 11:
The number 405 fits into 1050 2 times, leaving a remainder of 240.
Use 2 as the next digit of our solution. 
Result so far: 99134.792
Subtracting 810 from 1050 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 12:
2400 divided by 405 is 5 with a remainder of 375.
Write down 5 as next digit of the result. 
Result so far: 99134.7925
If we subtract 2025 from 2400, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Going ahead to step 13:
405 goes into 3750 9 times with a remainder of 105.
The number 9 becomes the next digit in our result. 
Result so far: 99134.79259
Subtracting 3645 from 3750 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Advancing to step 14:
405 goes into 1050 2 times with a remainder of 240.
Write down 2 as next digit of the result. 
Result so far: 99134.792592
If we subtract 810 from 1050, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 15:
When dividing 2400 by 405, we get 5 with a remainder of 375.
Write down 5 as next digit of the result. 
Result so far: 99134.7925925
If we subtract 2025 from 2400, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Going ahead to step 16:
When dividing 3750 by 405, we get 9 with a remainder of 105.
Write down 9 as next digit of the result. 
Result so far: 99134.79259259
Deduct 3645 from 3750 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The final result is 99134.79259259 with a remainder of 1.05e-07.