413350 ÷ 81 
Let's see how many times 81 fits into 413350.

On to step 1:
When dividing 4 by 81, we get 0 with 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.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 81

On to step 2:
81 can be fit into 41 0 times, resulting in a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 41 leaves us with 41.
Include the next digit (3) from the dividend after 41, then repeat: 413 / 81

Let's proceed to step 3:
If we divide 413 by 81, we get 5 and a remainder of 8.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 405 from 413, we get 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 81

Moving on to step 4:
81 can be fit into 83 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 51.0
Subtracting 81 from 83 leaves us with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 81

On to step 5:
If we divide 25 by 81, we get 0 and a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 510.0
If we subtract 0 from 25, we get 25.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 81

Advancing to step 6:
81 goes into 250 3 times with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 5103.0
If we subtract 243 from 250, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
When dividing 70 by 81, we get 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 5103.0
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
When dividing 700 by 81, we get 8 with a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 5103.08
Subtract 648 from 700 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 9:
If we divide 520 by 81, we get 6 and a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 5103.086
The remainder is 34 after subtracting 486 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 10:
When dividing 340 by 81, we get 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 5103.0864
Subtract 324 from 340 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
When dividing 160 by 81, we get 1 with a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 5103.08641
The remainder is 79 after subtracting 81 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 12:
81 can be fit into 790 9 times, resulting in a remainder of 61.
Write down 9 as next digit of the result. 
Result so far: 5103.086419
Subtract 729 from 790 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 13:
81 goes into 610 7 times with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 5103.0864197
Subtract 567 from 610 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 14:
The number 81 fits into 430 5 times, leaving a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 5103.08641975
Subtracting 405 from 430 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 5103.08641975 with a remainder of 2.5e-08.