We're dividing 42012081 by 82 
We want to figure out the number of times 42012081 can be divided by 82.

Going ahead to step 1:
When dividing 4 by 82, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 82

Advancing to step 2:
82 can be fit into 42 0 times, resulting in a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 82

Step 3:
When dividing 420 by 82, we get 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 410 from 420, we get 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 82

On to step 4:
The number 82 fits into 101 1 times, leaving a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 51.0
If we subtract 82 from 101, we get 19.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 82

On to step 5:
If we divide 192 by 82, we get 2 and a remainder of 28.
The next digit of our result is 2. 
Result so far: 512.0
Subtract 164 from 192 to get 28.
Grab the next digit (0) from the dividend, add it to 28, then carry on: 280 / 82

Advancing to step 6:
280 divided by 82 is 3 with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 5123.0
Deduct 246 from 280 and we're left with 34.
Fetch the next digit (8) from the dividend, attach it to 34 and continue: 348 / 82

Moving on to step 7:
When dividing 348 by 82, we get 4 with a remainder of 20.
The next digit of our result is 4. 
Result so far: 51234.0
Deduct 328 from 348 and we're left with 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 82

On to step 8:
When dividing 201 by 82, we get 2 with a remainder of 37.
Put 2 as the next digit of the answer. 
Result so far: 512342.0
Subtract 164 from 201 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 9:
The number 82 fits into 370 4 times, leaving a remainder of 42.
Write down 4 as next digit of the result. 
Result so far: 512342.4
If we subtract 328 from 370, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 10:
The number 82 fits into 420 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 512342.45
If we take 410 away from 420, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
When dividing 100 by 82, we get 1 with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 512342.451
Deduct 82 from 100 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 12:
82 can be fit into 180 2 times, resulting in a remainder of 16.
The next digit of our result is 2. 
Result so far: 512342.4512
Subtract 164 from 180 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
The number 82 fits into 160 1 times, leaving a remainder of 78.
Record the quotient 1 as the next digit in the result. 
Result so far: 512342.45121
Deduct 82 from 160 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 14:
780 divided by 82 is 9 with a remainder of 42.
Use 9 as the next digit of our solution. 
Result so far: 512342.451219
The remainder is 42 after subtracting 738 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 15:
82 can be fit into 420 5 times, resulting in a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 512342.4512195
If we subtract 410 from 420, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 16:
100 divided by 82 is 1 with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 512342.45121951
If we subtract 82 from 100, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 512342.45121951 with a remaining 1.8e-08.