We look at the division of 521647 by 12 
Let's see how many times 12 fits into 521647.

Moving on to step 1:
12 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 12

Advancing to step 2:
If we divide 52 by 12, we get 4 and a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 48 away from 52, we end up with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 12

Let's proceed to step 3:
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: 43.0
Subtract 36 from 41 to get 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 12

Moving on to step 4:
If we divide 56 by 12, we get 4 and a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 434.0
Subtracting 48 from 56 leaves us with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 12

Going ahead to step 5:
84 divided by 12 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 4347.0
Deduct 84 from 84 and we're left with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 12

On to step 6:
When dividing 7 by 12, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 43470.0
Subtract 0 from 7 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
The number 12 fits into 70 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 43470.5
If we take 60 away from 70, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
100 divided by 12 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 43470.58
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 9:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 43470.583
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
40 divided by 12 is 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 43470.5833
Subtracting 36 from 40 leaves us with 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 43470.5833, and the remainder is 4e-05.