We look at the division of 63586739 by 12 
We want to figure out the number of times 63586739 can be divided by 12.

Let's proceed to step 1:
6 divided by 12 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 12

Moving on to step 2:
The number 12 fits into 63 5 times, leaving a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 3 after subtracting 60 from 63.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 12

Let's proceed to step 3:
The number 12 fits into 35 2 times, leaving a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 52.0
Subtracting 24 from 35 leaves us with 11.
Include the next digit (8) from the dividend after 11, then repeat: 118 / 12

Step 4:
The number 12 fits into 118 9 times, leaving a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 529.0
Subtract 108 from 118 to get 10.
Include the next digit (6) from the dividend after 10, then repeat: 106 / 12

Going ahead to step 5:
12 goes into 106 8 times with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 5298.0
If we take 96 away from 106, we end up with 10.
Bring next digit (7) of the dividend behind the 10 and repeat the process: 107 / 12

Step 6:
12 goes into 107 8 times with a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 52988.0
The remainder is 11 after subtracting 96 from 107.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 12

Advancing to step 7:
If we divide 113 by 12, we get 9 and a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 529889.0
Subtract 108 from 113 to get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 12

Let's proceed to step 8:
The number 12 fits into 59 4 times, leaving a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 5298894.0
The remainder is 11 after subtracting 48 from 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 9:
110 divided by 12 is 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 5298894.9
The remainder is 2 after subtracting 108 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
The number 12 fits into 20 1 times, leaving a remainder of 8.
The next digit of our result is 1. 
Result so far: 5298894.91
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 11:
If we divide 80 by 12, we get 6 and a remainder of 8.
The next digit of our result is 6. 
Result so far: 5298894.916
Subtract 72 from 80 to get 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 12:
The number 12 fits into 80 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 5298894.9166
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.

After the division, we end up with 5298894.9166 and a remainder of 8e-05.