39479134 ÷ 81 
Let's see how many times 81 fits into 39479134.

On to step 1:
81 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 81

Step 2:
If we divide 39 by 81, we get 0 and a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Take the next digit (4) from the dividend and append it to 39, then repeat: 394 / 81

On to step 3:
The number 81 fits into 394 4 times, leaving a remainder of 70.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 324 from 394 and we're left with 70.
Bring next digit (7) of the dividend behind the 70 and repeat the process: 707 / 81

Going ahead to step 4:
707 divided by 81 is 8 with a remainder of 59.
Write down 8 as next digit of the result. 
Result so far: 48.0
Subtracting 648 from 707 leaves us with 59.
Grab the next digit (9) from the dividend, add it to 59, then carry on: 599 / 81

Moving on to step 5:
When dividing 599 by 81, we get 7 with a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 487.0
The remainder is 32 after subtracting 567 from 599.
Bring next digit (1) of the dividend behind the 32 and repeat the process: 321 / 81

Step 6:
81 goes into 321 3 times with a remainder of 78.
Write down 3 as next digit of the result. 
Result so far: 4873.0
If we take 243 away from 321, we end up with 78.
Take the next digit (3) from the dividend and append it to 78, then repeat: 783 / 81

Let's proceed to step 7:
81 can be fit into 783 9 times, resulting in a remainder of 54.
Write down 9 as next digit of the result. 
Result so far: 48739.0
If we take 729 away from 783, we end up with 54.
Append the next digit (4) from the dividend to 54 and continue with: 544 / 81

Let's proceed to step 8:
If we divide 544 by 81, we get 6 and a remainder of 58.
Use 6 as the next digit of our solution. 
Result so far: 487396.0
Subtract 486 from 544 to 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.

On to step 9:
580 divided by 81 is 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 487396.7
Subtract 567 from 580 to get 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 10:
81 can be fit into 130 1 times, resulting in a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 487396.71
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.

Going ahead to step 11:
The number 81 fits into 490 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 487396.716
Subtract 486 from 490 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 12:
If we divide 40 by 81, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 487396.716
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 13:
81 goes into 400 4 times with a remainder of 76.
The next digit of our result is 4. 
Result so far: 487396.71604
If we subtract 324 from 400, we 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.

Step 14:
81 can be fit into 760 9 times, resulting in a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 487396.716049
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.

Going ahead to step 15:
81 goes into 310 3 times with a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 487396.7160493
If we subtract 243 from 310, we 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.

On to step 16:
670 divided by 81 is 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 487396.71604938
Deduct 648 from 670 and we're left 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.

In conclusion, the division gives 487396.71604938 with a balance of 2.2e-08.