82123885 divided by 42 
Our goal is to divide 82123885 by 42.

Step 1:
42 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 42

Step 2:
When dividing 82 by 42, we get 1 with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 40 after subtracting 42 from 82.
Grab the next digit (1) from the dividend, add it to 40, then carry on: 401 / 42

Step 3:
401 divided by 42 is 9 with a remainder of 23.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
The remainder is 23 after subtracting 378 from 401.
Append the next digit (2) from the dividend to 23 and continue with: 232 / 42

Advancing to step 4:
42 can be fit into 232 5 times, resulting in a remainder of 22.
Record the quotient 5 as the next digit in the result. 
Result so far: 195.0
Subtract 210 from 232 to get 22.
Take the next digit (3) from the dividend and append it to 22, then repeat: 223 / 42

Step 5:
42 goes into 223 5 times with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 1955.0
Deduct 210 from 223 and we're left with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 42

Let's proceed to step 6:
The number 42 fits into 138 3 times, leaving a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 19553.0
Subtract 126 from 138 to get 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 42

Advancing to step 7:
42 goes into 128 3 times with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 195533.0
Deduct 126 from 128 and we're left with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 42

Advancing to step 8:
The number 42 fits into 25 0 times, leaving a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 1955330.0
The remainder is 25 after subtracting 0 from 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 9:
If we divide 250 by 42, we get 5 and a remainder of 40.
The next digit of our result is 5. 
Result so far: 1955330.5
Deduct 210 from 250 and we're left 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.

Going ahead to step 10:
When dividing 400 by 42, we get 9 with a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 1955330.59
Subtract 378 from 400 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 11:
220 divided by 42 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 1955330.595
The remainder is 10 after subtracting 210 from 220.
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 12:
100 divided by 42 is 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 1955330.5952
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 13:
The number 42 fits into 160 3 times, leaving a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 1955330.59523
Subtracting 126 from 160 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 14:
42 can be fit into 340 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 1955330.595238
Subtract 336 from 340 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.

Step 15:
If we divide 40 by 42, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1955330.595238
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 16:
400 divided by 42 is 9 with a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 1955330.59523809
Deduct 378 from 400 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.

The final result is 1955330.59523809 with a remainder of 2.2e-08.