347451 ÷ 12 
Our goal is to divide 347451 by 12.

Step 1:
12 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 12

On to step 2:
34 divided by 12 is 2 with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 24 from 34, we get 10.
Fetch the next digit (7) from the dividend, attach it to 10 and continue: 107 / 12

Let's proceed to step 3:
When dividing 107 by 12, we get 8 with a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 28.0
Deduct 96 from 107 and we're left with 11.
Include the next digit (4) from the dividend after 11, then repeat: 114 / 12

Going ahead to step 4:
12 can be fit into 114 9 times, resulting in a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 289.0
If we take 108 away from 114, we end up with 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 12

Moving on to step 5:
65 divided by 12 is 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 2895.0
Subtracting 60 from 65 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 12

Advancing to step 6:
12 goes into 51 4 times with a remainder of 3.
The next digit of our result is 4. 
Result so far: 28954.0
Subtract 48 from 51 to 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.

Step 7:
If we divide 30 by 12, we get 2 and a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 28954.2
Subtract 24 from 30 to 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.

On to step 8:
The number 12 fits into 60 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 28954.25
Subtracting 60 from 60 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.

Advancing to step 9:
If we divide 0 by 12, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28954.25
If we subtract 0 from 0, 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.

Moving on to step 10:
0 divided by 12 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 28954.25
If we take 0 away from 0, we end up 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.

The final outcome is 28954.25, with a leftover of 0.0.