904300 ÷ 81 
Let's see how many times 81 fits into 904300.

On to step 1:
When dividing 9 by 81, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 81

Moving on to step 2:
81 can be fit into 90 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 9 after subtracting 81 from 90.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 81

Moving on to step 3:
81 can be fit into 94 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtract 81 from 94 to get 13.
Append the next digit (3) from the dividend to 13 and continue with: 133 / 81

Step 4:
When dividing 133 by 81, we get 1 with a remainder of 52.
Use 1 as the next digit of our solution. 
Result so far: 111.0
The remainder is 52 after subtracting 81 from 133.
Include the next digit (0) from the dividend after 52, then repeat: 520 / 81

Advancing to step 5:
81 can be fit into 520 6 times, resulting in a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 1116.0
Subtract 486 from 520 to get 34.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 81

On to step 6:
When dividing 340 by 81, we get 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 11164.0
If we subtract 324 from 340, we 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.

Going ahead to step 7:
160 divided by 81 is 1 with a remainder of 79.
Use 1 as the next digit of our solution. 
Result so far: 11164.1
If we take 81 away from 160, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 8:
If we divide 790 by 81, we get 9 and a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 11164.19
If we subtract 729 from 790, we 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.

Step 9:
610 divided by 81 is 7 with a remainder of 43.
The next digit of our result is 7. 
Result so far: 11164.197
Subtracting 567 from 610 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 10:
81 can be fit into 430 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 11164.1975
Deduct 405 from 430 and we're left 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.

Step 11:
When dividing 250 by 81, we get 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 11164.19753
Deduct 243 from 250 and we're left with 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 12:
If we divide 70 by 81, we get 0 and a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 11164.19753
Deduct 0 from 70 and we're left with 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 13:
81 can be fit into 700 8 times, resulting in a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 11164.1975308
If we subtract 648 from 700, we 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 14:
When dividing 520 by 81, we get 6 with a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 11164.19753086
If we take 486 away from 520, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final result is 11164.19753086 with a remainder of 3.4e-08.