We look at the division of 42982009 by 342 
We want to divide 42982009 by 342.

Let's proceed to step 1:
342 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 342

Advancing to step 2:
When dividing 42 by 342, we get 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 342

On to step 3:
The number 342 fits into 429 1 times, leaving a remainder of 87.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 342 from 429 and we're left with 87.
Take the next digit (8) from the dividend and append it to 87, then repeat: 878 / 342

Let's proceed to step 4:
If we divide 878 by 342, we get 2 and a remainder of 194.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we take 684 away from 878, we end up with 194.
Grab the next digit (2) from the dividend, add it to 194, then carry on: 1942 / 342

On to step 5:
342 can be fit into 1942 5 times, resulting in a remainder of 232.
Put 5 as the next digit of the answer. 
Result so far: 125.0
Subtracting 1710 from 1942 leaves us with 232.
Grab the next digit (0) from the dividend, add it to 232, then carry on: 2320 / 342

Going ahead to step 6:
2320 divided by 342 is 6 with a remainder of 268.
Write down 6 as next digit of the result. 
Result so far: 1256.0
If we subtract 2052 from 2320, we get 268.
Take the next digit (0) from the dividend and append it to 268, then repeat: 2680 / 342

Step 7:
342 goes into 2680 7 times with a remainder of 286.
Record the quotient 7 as the next digit in the result. 
Result so far: 12567.0
If we take 2394 away from 2680, we end up with 286.
Grab the next digit (9) from the dividend, add it to 286, then carry on: 2869 / 342

On to step 8:
342 goes into 2869 8 times with a remainder of 133.
Put 8 as the next digit of the answer. 
Result so far: 125678.0
Subtracting 2736 from 2869 leaves us with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Step 9:
342 goes into 1330 3 times with a remainder of 304.
Write down 3 as next digit of the result. 
Result so far: 125678.3
Deduct 1026 from 1330 and we're left with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 10:
342 can be fit into 3040 8 times, resulting in a remainder of 304.
Put 8 as the next digit of the answer. 
Result so far: 125678.38
Subtracting 2736 from 3040 leaves us with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Step 11:
If we divide 3040 by 342, we get 8 and a remainder of 304.
Write down 8 as next digit of the result. 
Result so far: 125678.388
If we subtract 2736 from 3040, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

After the division, we end up with 125678.388 and a remainder of 0.0304.