621242 ÷ 81 
Let's see how many times 81 fits into 621242.

Moving on to step 1:
When dividing 6 by 81, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 81

On to step 2:
When dividing 62 by 81, we get 0 with a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 62 after subtracting 0 from 62.
Grab the next digit (1) from the dividend, add it to 62, then carry on: 621 / 81

Going ahead to step 3:
When dividing 621 by 81, we get 7 with a remainder of 54.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 567 from 621 to get 54.
Bring next digit (2) of the dividend behind the 54 and repeat the process: 542 / 81

On to step 4:
81 goes into 542 6 times with a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
The remainder is 56 after subtracting 486 from 542.
Fetch the next digit (4) from the dividend, attach it to 56 and continue: 564 / 81

Step 5:
564 divided by 81 is 6 with a remainder of 78.
Put 6 as the next digit of the answer. 
Result so far: 766.0
Subtracting 486 from 564 leaves us with 78.
Bring next digit (2) of the dividend behind the 78 and repeat the process: 782 / 81

Step 6:
81 goes into 782 9 times with a remainder of 53.
Write down 9 as next digit of the result. 
Result so far: 7669.0
Subtracting 729 from 782 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 7:
81 can be fit into 530 6 times, resulting in a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 7669.6
Subtracting 486 from 530 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
440 divided by 81 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 7669.65
The remainder is 35 after subtracting 405 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
If we divide 350 by 81, we get 4 and a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 7669.654
Subtract 324 from 350 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 10:
260 divided by 81 is 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 7669.6543
Subtract 243 from 260 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 11:
When dividing 170 by 81, we get 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 7669.65432
If we subtract 162 from 170, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
If we divide 80 by 81, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 7669.65432
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 13:
When dividing 800 by 81, we get 9 with a remainder of 71.
The next digit of our result is 9. 
Result so far: 7669.6543209
The remainder is 71 after subtracting 729 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 14:
If we divide 710 by 81, we get 8 and a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 7669.65432098
The remainder is 62 after subtracting 648 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Our division results in 7669.65432098 with a remaining 6.2e-08.