We look at the division of 425919 by 12 
We want to divide 425919 by 12.

On to step 1:
12 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 12

Step 2:
42 divided by 12 is 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 36 from 42 and we're left with 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 12

Let's proceed to step 3:
12 can be fit into 65 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 35.0
If we take 60 away from 65, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 12

Going ahead to step 4:
12 goes into 59 4 times with a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 354.0
If we take 48 away from 59, we end up with 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 12

Going ahead to step 5:
12 can be fit into 111 9 times, resulting in a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 3549.0
If we take 108 away from 111, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 12

Step 6:
The number 12 fits into 39 3 times, leaving a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 35493.0
If we subtract 36 from 39, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
If we divide 30 by 12, we get 2 and a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 35493.2
Deduct 24 from 30 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
60 divided by 12 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 35493.25
Deduct 60 from 60 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 35493.25
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
12 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 35493.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 35493.25 with a remaining 0.0.