We're dividing 646060 by 81 
Our goal is to divide 646060 by 81.

Step 1:
The number 81 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 81

On to step 2:
If we divide 64 by 81, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Bring next digit (6) of the dividend behind the 64 and repeat the process: 646 / 81

Going ahead to step 3:
646 divided by 81 is 7 with a remainder of 79.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 567 from 646, we get 79.
Grab the next digit (0) from the dividend, add it to 79, then carry on: 790 / 81

Going ahead to step 4:
If we divide 790 by 81, we get 9 and a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 79.0
The remainder is 61 after subtracting 729 from 790.
Include the next digit (6) from the dividend after 61, then repeat: 616 / 81

Advancing to step 5:
81 can be fit into 616 7 times, resulting in a remainder of 49.
Record the quotient 7 as the next digit in the result. 
Result so far: 797.0
The remainder is 49 after subtracting 567 from 616.
Take the next digit (0) from the dividend and append it to 49, then repeat: 490 / 81

On to step 6:
81 goes into 490 6 times with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 7976.0
The remainder is 4 after subtracting 486 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
40 divided by 81 is 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 7976.0
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 8:
The number 81 fits into 400 4 times, leaving a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 7976.04
Subtract 324 from 400 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 9:
If we divide 760 by 81, we get 9 and a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 7976.049
Deduct 729 from 760 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 10:
310 divided by 81 is 3 with a remainder of 67.
The next digit of our result is 3. 
Result so far: 7976.0493
Subtract 243 from 310 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 11:
670 divided by 81 is 8 with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 7976.04938
Subtracting 648 from 670 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 12:
The number 81 fits into 220 2 times, leaving a remainder of 58.
The number 2 becomes the next digit in our result. 
Result so far: 7976.049382
If we subtract 162 from 220, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 13:
If we divide 580 by 81, we get 7 and a remainder of 13.
The next digit of our result is 7. 
Result so far: 7976.0493827
If we take 567 away from 580, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 14:
81 goes into 130 1 times with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 7976.04938271
Subtract 81 from 130 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

The final result is 7976.04938271 with a remainder of 4.9e-08.