We're dividing 340198 by 12 
Let's see how many times 12 fits into 340198.

Going ahead to step 1:
12 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 12

On to step 2:
12 goes into 34 2 times with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 24 from 34 to get 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 12

Advancing to step 3:
12 can be fit into 100 8 times, resulting in a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
If we take 96 away from 100, we end up with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 12

On to step 4:
12 can be fit into 41 3 times, resulting in a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 283.0
Deduct 36 from 41 and we're left with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 12

Step 5:
The number 12 fits into 59 4 times, leaving a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 2834.0
The remainder is 11 after subtracting 48 from 59.
Bring next digit (8) of the dividend behind the 11 and repeat the process: 118 / 12

Moving on to step 6:
12 goes into 118 9 times with a remainder of 10.
The next digit of our result is 9. 
Result so far: 28349.0
The remainder is 10 after subtracting 108 from 118.
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 7:
When dividing 100 by 12, we get 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 28349.8
Subtract 96 from 100 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.

Going ahead to step 8:
12 goes into 40 3 times with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 28349.83
If we subtract 36 from 40, we 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.

Going ahead to step 9:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 28349.833
Subtract 36 from 40 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.

The quotient of the division is 28349.833, and the remainder is 0.0004.