We look at the division of 511698 by 81 
Let's see how many times 81 fits into 511698.

On to step 1:
When dividing 5 by 81, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 81

Going ahead to step 2:
The number 81 fits into 51 0 times, leaving a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Grab the next digit (1) from the dividend, add it to 51, then carry on: 511 / 81

Step 3:
If we divide 511 by 81, we get 6 and a remainder of 25.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 486 from 511 leaves us with 25.
Take the next digit (6) from the dividend and append it to 25, then repeat: 256 / 81

Advancing to step 4:
256 divided by 81 is 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
If we take 243 away from 256, we end up with 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 81

Going ahead to step 5:
If we divide 139 by 81, we get 1 and a remainder of 58.
Record the quotient 1 as the next digit in the result. 
Result so far: 631.0
Deduct 81 from 139 and we're left with 58.
Append the next digit (8) from the dividend to 58 and continue with: 588 / 81

Moving on to step 6:
The number 81 fits into 588 7 times, leaving a remainder of 21.
The next digit of our result is 7. 
Result so far: 6317.0
Subtracting 567 from 588 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 7:
81 can be fit into 210 2 times, resulting in a remainder of 48.
The next digit of our result is 2. 
Result so far: 6317.2
Subtract 162 from 210 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 8:
When dividing 480 by 81, we get 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 6317.25
Subtract 405 from 480 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 9:
When dividing 750 by 81, we get 9 with a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 6317.259
If we take 729 away from 750, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 10:
210 divided by 81 is 2 with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 6317.2592
Subtract 162 from 210 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
480 divided by 81 is 5 with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 6317.25925
Deduct 405 from 480 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 12:
750 divided by 81 is 9 with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 6317.259259
Subtract 729 from 750 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 13:
81 can be fit into 210 2 times, resulting in a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 6317.2592592
If we subtract 162 from 210, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 14:
480 divided by 81 is 5 with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 6317.25925925
Subtract 405 from 480 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The final outcome is 6317.25925925, with a leftover of 7.5e-08.