We look at the division of 139455 by 63 
The aim is to understand the frequency of 63 in 139455.

On to step 1:
The number 63 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 63

Going ahead to step 2:
63 goes into 13 0 times with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 63

Moving on to step 3:
63 can be fit into 139 2 times, resulting in a remainder of 13.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 13 after subtracting 126 from 139.
Append the next digit (4) from the dividend to 13 and continue with: 134 / 63

Going ahead to step 4:
If we divide 134 by 63, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
If we take 126 away from 134, we end up with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 63

Let's proceed to step 5:
63 goes into 85 1 times with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 221.0
Subtracting 63 from 85 leaves us with 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 63

Advancing to step 6:
63 can be fit into 225 3 times, resulting in a remainder of 36.
Write down 3 as next digit of the result. 
Result so far: 2213.0
The remainder is 36 after subtracting 189 from 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 7:
When dividing 360 by 63, we get 5 with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 2213.5
Subtract 315 from 360 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 8:
63 goes into 450 7 times with a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 2213.57
If we take 441 away from 450, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 9:
If we divide 90 by 63, we get 1 and a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 2213.571
Deduct 63 from 90 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 10:
270 divided by 63 is 4 with a remainder of 18.
The next digit of our result is 4. 
Result so far: 2213.5714
The remainder is 18 after subtracting 252 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
If we divide 180 by 63, we get 2 and a remainder of 54.
Use 2 as the next digit of our solution. 
Result so far: 2213.57142
If we subtract 126 from 180, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 12:
When dividing 540 by 63, we get 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 2213.571428
Deduct 504 from 540 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 13:
If we divide 360 by 63, we get 5 and a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 2213.5714285
Subtract 315 from 360 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 14:
63 can be fit into 450 7 times, resulting in a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 2213.57142857
Subtracting 441 from 450 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final result is 2213.57142857 with a remainder of 9e-09.