879748 divided by 63 
The aim is to understand the frequency of 63 in 879748.

Step 1:
8 divided by 63 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 63

On to step 2:
When dividing 87 by 63, we get 1 with a remainder of 24.
The next digit of our result is 1. 
Result so far: 1.0
If we take 63 away from 87, we end up with 24.
Take the next digit (9) from the dividend and append it to 24, then repeat: 249 / 63

Let's proceed to step 3:
63 goes into 249 3 times with a remainder of 60.
The next digit of our result is 3. 
Result so far: 13.0
If we take 189 away from 249, we end up with 60.
Append the next digit (7) from the dividend to 60 and continue with: 607 / 63

Let's proceed to step 4:
63 goes into 607 9 times with a remainder of 40.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
The remainder is 40 after subtracting 567 from 607.
Fetch the next digit (4) from the dividend, attach it to 40 and continue: 404 / 63

Moving on to step 5:
404 divided by 63 is 6 with a remainder of 26.
Record the quotient 6 as the next digit in the result. 
Result so far: 1396.0
Deduct 378 from 404 and we're left with 26.
Append the next digit (8) from the dividend to 26 and continue with: 268 / 63

Step 6:
If we divide 268 by 63, we get 4 and a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 13964.0
Subtracting 252 from 268 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
The number 63 fits into 160 2 times, leaving a remainder of 34.
The number 2 becomes the next digit in our result. 
Result so far: 13964.2
Subtract 126 from 160 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 8:
The number 63 fits into 340 5 times, leaving a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 13964.25
The remainder is 25 after subtracting 315 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 9:
250 divided by 63 is 3 with a remainder of 61.
The number 3 becomes the next digit in our result. 
Result so far: 13964.253
The remainder is 61 after subtracting 189 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 10:
63 goes into 610 9 times with a remainder of 43.
Use 9 as the next digit of our solution. 
Result so far: 13964.2539
If we subtract 567 from 610, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 11:
63 goes into 430 6 times with a remainder of 52.
Use 6 as the next digit of our solution. 
Result so far: 13964.25396
If we take 378 away from 430, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 12:
63 goes into 520 8 times with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 13964.253968
Subtracting 504 from 520 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 13:
63 can be fit into 160 2 times, resulting in a remainder of 34.
Use 2 as the next digit of our solution. 
Result so far: 13964.2539682
Subtract 126 from 160 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 14:
63 goes into 340 5 times with a remainder of 25.
The next digit of our result is 5. 
Result so far: 13964.25396825
Deduct 315 from 340 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 13964.25396825, with a leftover of 2.5e-08.