We're dividing 686478 by 63 
The aim is to understand the frequency of 63 in 686478.

Advancing to step 1:
When dividing 6 by 63, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 63

Let's proceed to step 2:
63 goes into 68 1 times with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 63 from 68 leaves us with 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 63

Moving on to step 3:
63 can be fit into 56 0 times, resulting in a remainder of 56.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 56 after subtracting 0 from 56.
Bring next digit (4) of the dividend behind the 56 and repeat the process: 564 / 63

On to step 4:
63 can be fit into 564 8 times, resulting in a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 108.0
Subtracting 504 from 564 leaves us with 60.
Bring next digit (7) of the dividend behind the 60 and repeat the process: 607 / 63

Going ahead to step 5:
63 can be fit into 607 9 times, resulting in a remainder of 40.
The next digit of our result is 9. 
Result so far: 1089.0
If we take 567 away from 607, we end up with 40.
Bring next digit (8) of the dividend behind the 40 and repeat the process: 408 / 63

Moving on to step 6:
63 goes into 408 6 times with a remainder of 30.
Use 6 as the next digit of our solution. 
Result so far: 10896.0
Deduct 378 from 408 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 7:
63 goes into 300 4 times with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 10896.4
Subtracting 252 from 300 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 8:
480 divided by 63 is 7 with a remainder of 39.
Record the quotient 7 as the next digit in the result. 
Result so far: 10896.47
Subtracting 441 from 480 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 9:
63 goes into 390 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 10896.476
The remainder is 12 after subtracting 378 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 10:
63 goes into 120 1 times with a remainder of 57.
The number 1 becomes the next digit in our result. 
Result so far: 10896.4761
The remainder is 57 after subtracting 63 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 11:
If we divide 570 by 63, we get 9 and a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 10896.47619
If we take 567 away from 570, we end up with 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 12:
The number 63 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 10896.47619
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 13:
When dividing 300 by 63, we get 4 with a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 10896.4761904
If we take 252 away from 300, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 14:
If we divide 480 by 63, we get 7 and a remainder of 39.
The next digit of our result is 7. 
Result so far: 10896.47619047
If we subtract 441 from 480, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

After the division, we end up with 10896.47619047 and a remainder of 3.9e-08.