671684 divided by 81 
We want to divide 671684 by 81.

Let's proceed to step 1:
The number 81 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 81

Going ahead to step 2:
81 goes into 67 0 times with a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 67 to get 67.
Bring next digit (1) of the dividend behind the 67 and repeat the process: 671 / 81

On to step 3:
671 divided by 81 is 8 with a remainder of 23.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 648 from 671 to get 23.
Grab the next digit (6) from the dividend, add it to 23, then carry on: 236 / 81

Advancing to step 4:
81 goes into 236 2 times with a remainder of 74.
Use 2 as the next digit of our solution. 
Result so far: 82.0
The remainder is 74 after subtracting 162 from 236.
Bring next digit (8) of the dividend behind the 74 and repeat the process: 748 / 81

Step 5:
81 goes into 748 9 times with a remainder of 19.
The next digit of our result is 9. 
Result so far: 829.0
The remainder is 19 after subtracting 729 from 748.
Take the next digit (4) from the dividend and append it to 19, then repeat: 194 / 81

Going ahead to step 6:
If we divide 194 by 81, we get 2 and a remainder of 32.
The next digit of our result is 2. 
Result so far: 8292.0
If we subtract 162 from 194, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 7:
320 divided by 81 is 3 with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 8292.3
Subtract 243 from 320 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 8:
If we divide 770 by 81, we get 9 and a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 8292.39
Deduct 729 from 770 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 9:
If we divide 410 by 81, we get 5 and a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 8292.395
The remainder is 5 after subtracting 405 from 410.
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 10:
81 can be fit into 50 0 times, resulting in a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 8292.395
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 11:
81 can be fit into 500 6 times, resulting in a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 8292.39506
The remainder is 14 after subtracting 486 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 12:
81 can be fit into 140 1 times, resulting in a remainder of 59.
Record the quotient 1 as the next digit in the result. 
Result so far: 8292.395061
Deduct 81 from 140 and we're left 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.

Advancing to step 13:
81 goes into 590 7 times with a remainder of 23.
The next digit of our result is 7. 
Result so far: 8292.3950617
If we subtract 567 from 590, we 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.

Let's proceed to step 14:
When dividing 230 by 81, we get 2 with a remainder of 68.
The next digit of our result is 2. 
Result so far: 8292.39506172
Subtract 162 from 230 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

After the division, we end up with 8292.39506172 and a remainder of 6.8e-08.