81257264 divided by 405 
Our goal is to divide 81257264 by 405.

Let's proceed to step 1:
If we divide 8 by 405, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 405

On to step 2:
405 goes into 81 0 times with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Include the next digit (2) from the dividend after 81, then repeat: 812 / 405

Moving on to step 3:
405 can be fit into 812 2 times, resulting in a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 810 away from 812, we end up with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 405

On to step 4:
25 divided by 405 is 0 with a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtracting 0 from 25 leaves us with 25.
Append the next digit (7) from the dividend to 25 and continue with: 257 / 405

Advancing to step 5:
257 divided by 405 is 0 with a remainder of 257.
Record the quotient 0 as the next digit in the result. 
Result so far: 200.0
If we take 0 away from 257, we end up with 257.
Append the next digit (2) from the dividend to 257 and continue with: 2572 / 405

Going ahead to step 6:
405 can be fit into 2572 6 times, resulting in a remainder of 142.
Use 6 as the next digit of our solution. 
Result so far: 2006.0
The remainder is 142 after subtracting 2430 from 2572.
Grab the next digit (6) from the dividend, add it to 142, then carry on: 1426 / 405

Step 7:
405 goes into 1426 3 times with a remainder of 211.
Record the quotient 3 as the next digit in the result. 
Result so far: 20063.0
Subtract 1215 from 1426 to get 211.
Grab the next digit (4) from the dividend, add it to 211, then carry on: 2114 / 405

Step 8:
2114 divided by 405 is 5 with a remainder of 89.
The number 5 becomes the next digit in our result. 
Result so far: 200635.0
The remainder is 89 after subtracting 2025 from 2114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

On to step 9:
When dividing 890 by 405, we get 2 with a remainder of 80.
Put 2 as the next digit of the answer. 
Result so far: 200635.2
If we subtract 810 from 890, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 10:
800 divided by 405 is 1 with a remainder of 395.
Write down 1 as next digit of the result. 
Result so far: 200635.21
Subtracting 405 from 800 leaves us with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Going ahead to step 11:
405 goes into 3950 9 times with a remainder of 305.
Put 9 as the next digit of the answer. 
Result so far: 200635.219
Deduct 3645 from 3950 and we're left with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Let's proceed to step 12:
If we divide 3050 by 405, we get 7 and a remainder of 215.
Use 7 as the next digit of our solution. 
Result so far: 200635.2197
If we take 2835 away from 3050, we end up with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Advancing to step 13:
When dividing 2150 by 405, we get 5 with a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 200635.21975
Subtracting 2025 from 2150 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 14:
The number 405 fits into 1250 3 times, leaving a remainder of 35.
Write down 3 as next digit of the result. 
Result so far: 200635.219753
If we subtract 1215 from 1250, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 15:
When dividing 350 by 405, we get 0 with a remainder of 350.
The number 0 becomes the next digit in our result. 
Result so far: 200635.219753
Subtract 0 from 350 to get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Going ahead to step 16:
405 can be fit into 3500 8 times, resulting in a remainder of 260.
Write down 8 as next digit of the result. 
Result so far: 200635.21975308
The remainder is 260 after subtracting 3240 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

The final result is 200635.21975308 with a remainder of 2.6e-07.