8100736 ÷ 405 
Let's see how many times 405 fits into 8100736.

Advancing to step 1:
When dividing 8 by 405, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 405

Moving on to step 2:
405 can be fit into 81 0 times, resulting in a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Fetch the next digit (0) from the dividend, attach it to 81 and continue: 810 / 405

Step 3:
When dividing 810 by 405, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 810 from 810 leaves us with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 405

On to step 4:
When dividing 0 by 405, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Deduct 0 from 0 and we're left with 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 405

Advancing to step 5:
The number 405 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 200.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 405

Advancing to step 6:
When dividing 73 by 405, we get 0 with a remainder of 73.
Put 0 as the next digit of the answer. 
Result so far: 2000.0
The remainder is 73 after subtracting 0 from 73.
Bring next digit (6) of the dividend behind the 73 and repeat the process: 736 / 405

Step 7:
405 can be fit into 736 1 times, resulting in a remainder of 331.
The next digit of our result is 1. 
Result so far: 20001.0
Subtracting 405 from 736 leaves us with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Step 8:
When dividing 3310 by 405, we get 8 with a remainder of 70.
The number 8 becomes the next digit in our result. 
Result so far: 20001.8
If we subtract 3240 from 3310, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 9:
405 can be fit into 700 1 times, resulting in a remainder of 295.
The number 1 becomes the next digit in our result. 
Result so far: 20001.81
The remainder is 295 after subtracting 405 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Step 10:
405 goes into 2950 7 times with a remainder of 115.
Write down 7 as next digit of the result. 
Result so far: 20001.817
Subtract 2835 from 2950 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Step 11:
405 goes into 1150 2 times with a remainder of 340.
Write down 2 as next digit of the result. 
Result so far: 20001.8172
Subtracting 810 from 1150 leaves us with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Step 12:
405 goes into 3400 8 times with a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 20001.81728
If we take 3240 away from 3400, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 13:
405 can be fit into 1600 3 times, resulting in a remainder of 385.
Write down 3 as next digit of the result. 
Result so far: 20001.817283
If we take 1215 away from 1600, we end up with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Let's proceed to step 14:
When dividing 3850 by 405, we get 9 with a remainder of 205.
Put 9 as the next digit of the answer. 
Result so far: 20001.8172839
Subtract 3645 from 3850 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 15:
2050 divided by 405 is 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 20001.81728395
The remainder is 25 after subtracting 2025 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

In conclusion, the division gives 20001.81728395 with a balance of 2.5e-08.