45568400 ÷ 81 
We want to divide 45568400 by 81.

On to step 1:
4 divided by 81 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 81

Advancing to step 2:
81 goes into 45 0 times with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Take the next digit (5) from the dividend and append it to 45, then repeat: 455 / 81

Step 3:
81 goes into 455 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 50 after subtracting 405 from 455.
Include the next digit (6) from the dividend after 50, then repeat: 506 / 81

Let's proceed to step 4:
When dividing 506 by 81, we get 6 with a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 56.0
Subtracting 486 from 506 leaves us with 20.
Append the next digit (8) from the dividend to 20 and continue with: 208 / 81

Step 5:
208 divided by 81 is 2 with a remainder of 46.
The next digit of our result is 2. 
Result so far: 562.0
Subtracting 162 from 208 leaves us with 46.
Grab the next digit (4) from the dividend, add it to 46, then carry on: 464 / 81

On to step 6:
The number 81 fits into 464 5 times, leaving a remainder of 59.
The next digit of our result is 5. 
Result so far: 5625.0
Subtracting 405 from 464 leaves us with 59.
Append the next digit (0) from the dividend to 59 and continue with: 590 / 81

Advancing to step 7:
If we divide 590 by 81, we get 7 and a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 56257.0
If we take 567 away from 590, we end up with 23.
Append the next digit (0) from the dividend to 23 and continue with: 230 / 81

Going ahead to step 8:
When dividing 230 by 81, we get 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 562572.0
The remainder is 68 after subtracting 162 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 9:
81 can be fit into 680 8 times, resulting in a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 562572.8
The remainder is 32 after subtracting 648 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
The number 81 fits into 320 3 times, leaving a remainder of 77.
Put 3 as the next digit of the answer. 
Result so far: 562572.83
The remainder is 77 after subtracting 243 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 11:
If we divide 770 by 81, we get 9 and a remainder of 41.
The next digit of our result is 9. 
Result so far: 562572.839
Subtract 729 from 770 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 12:
When dividing 410 by 81, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 562572.8395
If we take 405 away from 410, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 13:
81 goes into 50 0 times with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 562572.8395
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 14:
If we divide 500 by 81, we get 6 and a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 562572.839506
Subtract 486 from 500 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 15:
If we divide 140 by 81, we get 1 and a remainder of 59.
The next digit of our result is 1. 
Result so far: 562572.8395061
If we take 81 away from 140, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 16:
590 divided by 81 is 7 with a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 562572.83950617
Subtract 567 from 590 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

After the division, we end up with 562572.83950617 and a remainder of 2.3e-08.