671129 ÷ 81 
Let's see how many times 81 fits into 671129.

Moving on to step 1:
81 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 81

Going ahead to step 2:
81 can be fit into 67 0 times, resulting in a remainder of 67.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 67, we end up with 67.
Grab the next digit (1) from the dividend, add it to 67, then carry on: 671 / 81

Advancing to step 3:
671 divided by 81 is 8 with a remainder of 23.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 648 from 671 to get 23.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 81

Advancing to step 4:
If we divide 231 by 81, we get 2 and a remainder of 69.
The next digit of our result is 2. 
Result so far: 82.0
The remainder is 69 after subtracting 162 from 231.
Grab the next digit (2) from the dividend, add it to 69, then carry on: 692 / 81

On to step 5:
If we divide 692 by 81, we get 8 and a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 828.0
Subtract 648 from 692 to get 44.
Grab the next digit (9) from the dividend, add it to 44, then carry on: 449 / 81

Let's proceed to step 6:
81 goes into 449 5 times with a remainder of 44.
Write down 5 as next digit of the result. 
Result so far: 8285.0
Deduct 405 from 449 and we're left 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.

Moving on to step 7:
If we divide 440 by 81, we get 5 and a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 8285.5
Subtracting 405 from 440 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 8:
350 divided by 81 is 4 with a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 8285.54
Subtracting 324 from 350 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 9:
81 can be fit into 260 3 times, resulting in a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 8285.543
The remainder is 17 after subtracting 243 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 10:
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: 8285.5432
The remainder is 8 after subtracting 162 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
When dividing 80 by 81, we get 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 8285.5432
If we take 0 away from 80, we end up 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 12:
81 goes into 800 9 times with a remainder of 71.
Record the quotient 9 as the next digit in the result. 
Result so far: 8285.543209
If we take 729 away from 800, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 13:
81 goes into 710 8 times with a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 8285.5432098
Subtract 648 from 710 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 14:
81 goes into 620 7 times with a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 8285.54320987
Subtract 567 from 620 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

After the division, we end up with 8285.54320987 and a remainder of 5.3e-08.