634490 divided by 12 
Let's see how many times 12 fits into 634490.

Going ahead to step 1:
12 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 12

On to step 2:
63 divided by 12 is 5 with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 60 from 63, we get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 12

Going ahead to step 3:
If we divide 34 by 12, we get 2 and a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
The remainder is 10 after subtracting 24 from 34.
Include the next digit (4) from the dividend after 10, then repeat: 104 / 12

Step 4:
104 divided by 12 is 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 528.0
Subtracting 96 from 104 leaves us with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 12

Advancing to step 5:
When dividing 89 by 12, we get 7 with a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 5287.0
If we take 84 away from 89, we end up with 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 12

Let's proceed to step 6:
When dividing 50 by 12, we get 4 with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 52874.0
If we subtract 48 from 50, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
When dividing 20 by 12, we get 1 with a remainder of 8.
The next digit of our result is 1. 
Result so far: 52874.1
Deduct 12 from 20 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 8:
12 can be fit into 80 6 times, resulting in a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 52874.16
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 52874.166
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 52874.166 with a remainder of 0.0008.