We look at the division of 42267520 by 81 
Our goal is to divide 42267520 by 81.

On to step 1:
4 divided by 81 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 81

Advancing to step 2:
81 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Take the next digit (2) from the dividend and append it to 42, then repeat: 422 / 81

Advancing to step 3:
422 divided by 81 is 5 with a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 405 from 422 and we're left with 17.
Append the next digit (6) from the dividend to 17 and continue with: 176 / 81

Step 4:
The number 81 fits into 176 2 times, leaving a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
Subtracting 162 from 176 leaves us with 14.
Take the next digit (7) from the dividend and append it to 14, then repeat: 147 / 81

Moving on to step 5:
When dividing 147 by 81, we get 1 with a remainder of 66.
Write down 1 as next digit of the result. 
Result so far: 521.0
Subtracting 81 from 147 leaves us with 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 81

Moving on to step 6:
81 can be fit into 665 8 times, resulting in a remainder of 17.
Record the quotient 8 as the next digit in the result. 
Result so far: 5218.0
Deduct 648 from 665 and we're left with 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 81

Step 7:
When dividing 172 by 81, we get 2 with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 52182.0
If we take 162 away from 172, we end up with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 81

Moving on to step 8:
If we divide 100 by 81, we get 1 and a remainder of 19.
The next digit of our result is 1. 
Result so far: 521821.0
Deduct 81 from 100 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
When dividing 190 by 81, we get 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 521821.2
If we take 162 away from 190, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 10:
If we divide 280 by 81, we get 3 and a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 521821.23
The remainder is 37 after subtracting 243 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 11:
When dividing 370 by 81, we get 4 with a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 521821.234
The remainder is 46 after subtracting 324 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 12:
If we divide 460 by 81, we get 5 and a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 521821.2345
Deduct 405 from 460 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 13:
81 can be fit into 550 6 times, resulting in a remainder of 64.
The next digit of our result is 6. 
Result so far: 521821.23456
Subtracting 486 from 550 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 14:
81 goes into 640 7 times with a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 521821.234567
Deduct 567 from 640 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 15:
81 can be fit into 730 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 521821.2345679
If we subtract 729 from 730, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 16:
81 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 521821.2345679
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 521821.2345679, with a leftover of 1e-08.