Let's divide 40335559 by 81
We want to divide 40335559 by 81.

Moving on to step 1:
81 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 81

Moving on to step 2:
81 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Take the next digit (3) from the dividend and append it to 40, then repeat: 403 / 81

On to step 3:
403 divided by 81 is 4 with a remainder of 79.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 324 from 403, we get 79.
Include the next digit (3) from the dividend after 79, then repeat: 793 / 81

On to step 4:
793 divided by 81 is 9 with a remainder of 64.
Write down 9 as next digit of the result. 
Result so far: 49.0
If we take 729 away from 793, we end up with 64.
Grab the next digit (5) from the dividend, add it to 64, then carry on: 645 / 81

Moving on to step 5:
When dividing 645 by 81, we get 7 with a remainder of 78.
Put 7 as the next digit of the answer. 
Result so far: 497.0
Subtracting 567 from 645 leaves us with 78.
Bring next digit (5) of the dividend behind the 78 and repeat the process: 785 / 81

Advancing to step 6:
The number 81 fits into 785 9 times, leaving a remainder of 56.
Put 9 as the next digit of the answer. 
Result so far: 4979.0
Deduct 729 from 785 and we're left with 56.
Include the next digit (5) from the dividend after 56, then repeat: 565 / 81

Moving on to step 7:
81 goes into 565 6 times with a remainder of 79.
Use 6 as the next digit of our solution. 
Result so far: 49796.0
Subtracting 486 from 565 leaves us with 79.
Append the next digit (9) from the dividend to 79 and continue with: 799 / 81

Step 8:
81 goes into 799 9 times with a remainder of 70.
Put 9 as the next digit of the answer. 
Result so far: 497969.0
Deduct 729 from 799 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.

Moving on to step 9:
81 can be fit into 700 8 times, resulting in a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 497969.8
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 10:
81 goes into 520 6 times with a remainder of 34.
The next digit of our result is 6. 
Result so far: 497969.86
Subtracting 486 from 520 leaves us 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.

Let's proceed to step 11:
If we divide 340 by 81, we get 4 and a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 497969.864
Subtracting 324 from 340 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 12:
If we divide 160 by 81, we get 1 and a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 497969.8641
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.

Going ahead to step 13:
81 can be fit into 790 9 times, resulting in a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 497969.86419
Deduct 729 from 790 and we're left with 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 14:
The number 81 fits into 610 7 times, leaving a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 497969.864197
If we subtract 567 from 610, we 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.

Going ahead to step 15:
81 goes into 430 5 times with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 497969.8641975
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.

Going ahead to step 16:
250 divided by 81 is 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 497969.86419753
The remainder is 7 after subtracting 243 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final result is 497969.86419753 with a remainder of 7e-09.