635280 ÷ 81 
Let's see how many times 81 fits into 635280.

Step 1:
81 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 81

Step 2:
When dividing 63 by 81, we get 0 with a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Bring next digit (5) of the dividend behind the 63 and repeat the process: 635 / 81

Going ahead to step 3:
81 can be fit into 635 7 times, resulting in a remainder of 68.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 567 from 635 to get 68.
Append the next digit (2) from the dividend to 68 and continue with: 682 / 81

Going ahead to step 4:
81 goes into 682 8 times with a remainder of 34.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
If we subtract 648 from 682, we get 34.
Take the next digit (8) from the dividend and append it to 34, then repeat: 348 / 81

Advancing to step 5:
If we divide 348 by 81, we get 4 and a remainder of 24.
The next digit of our result is 4. 
Result so far: 784.0
The remainder is 24 after subtracting 324 from 348.
Fetch the next digit (0) from the dividend, attach it to 24 and continue: 240 / 81

Let's proceed to step 6:
When dividing 240 by 81, we get 2 with a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 7842.0
Subtract 162 from 240 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 7:
81 can be fit into 780 9 times, resulting in a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 7842.9
Subtracting 729 from 780 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 8:
81 goes into 510 6 times with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 7842.96
Subtracting 486 from 510 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
The number 81 fits into 240 2 times, leaving a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 7842.962
Subtracting 162 from 240 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 10:
When dividing 780 by 81, we get 9 with a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 7842.9629
The remainder is 51 after subtracting 729 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 11:
If we divide 510 by 81, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 7842.96296
The remainder is 24 after subtracting 486 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 12:
81 can be fit into 240 2 times, resulting in a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 7842.962962
Deduct 162 from 240 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 13:
If we divide 780 by 81, we get 9 and a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 7842.9629629
If we take 729 away from 780, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 14:
510 divided by 81 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 7842.96296296
If we subtract 486 from 510, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 7842.96296296, with a leftover of 2.4e-08.