842457 divided by 12 
We want to divide 842457 by 12.

On to step 1:
The number 12 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 12

Going ahead to step 2:
When dividing 84 by 12, we get 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 84 from 84 and we're left with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 12

Moving on to step 3:
The number 12 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 70.0
Subtract 0 from 2 to get 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 12

Advancing to step 4:
12 can be fit into 24 2 times, resulting in a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 702.0
The remainder is 0 after subtracting 24 from 24.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 12

Advancing to step 5:
If we divide 5 by 12, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 7020.0
If we subtract 0 from 5, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 12

Going ahead to step 6:
The number 12 fits into 57 4 times, leaving a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 70204.0
The remainder is 9 after subtracting 48 from 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
90 divided by 12 is 7 with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 70204.7
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
60 divided by 12 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 70204.75
If we subtract 60 from 60, we 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.

Advancing to step 9:
If we divide 0 by 12, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 70204.75
Deduct 0 from 0 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.

Let's proceed to step 10:
12 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 70204.75
The remainder is 0 after subtracting 0 from 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 70204.75 with a remaining 0.0.