664668 divided by 63 
The aim is to understand the frequency of 63 in 664668.

Moving on to step 1:
If we divide 6 by 63, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 63

On to step 2:
The number 63 fits into 66 1 times, leaving a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 63 from 66 leaves us with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 63

Let's proceed to step 3:
63 can be fit into 34 0 times, resulting in a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 34 after subtracting 0 from 34.
Grab the next digit (6) from the dividend, add it to 34, then carry on: 346 / 63

Moving on to step 4:
If we divide 346 by 63, we get 5 and a remainder of 31.
The next digit of our result is 5. 
Result so far: 105.0
Subtract 315 from 346 to get 31.
Fetch the next digit (6) from the dividend, attach it to 31 and continue: 316 / 63

On to step 5:
When dividing 316 by 63, we get 5 with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 1055.0
Deduct 315 from 316 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 63

Going ahead to step 6:
63 goes into 18 0 times with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 10550.0
Deduct 0 from 18 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 7:
If we divide 180 by 63, we get 2 and a remainder of 54.
Write down 2 as next digit of the result. 
Result so far: 10550.2
Subtracting 126 from 180 leaves us with 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 8:
The number 63 fits into 540 8 times, leaving a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 10550.28
If we take 504 away from 540, we end up 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.

Going ahead to step 9:
The number 63 fits into 360 5 times, leaving a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 10550.285
If we subtract 315 from 360, we 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.

Advancing to step 10:
The number 63 fits into 450 7 times, leaving a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 10550.2857
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.

Moving on to step 11:
63 can be fit into 90 1 times, resulting in a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 10550.28571
Subtract 63 from 90 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 12:
If we divide 270 by 63, we get 4 and a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 10550.285714
If we subtract 252 from 270, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 13:
If we divide 180 by 63, we get 2 and a remainder of 54.
The next digit of our result is 2. 
Result so far: 10550.2857142
Subtract 126 from 180 to 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 14:
63 can be fit into 540 8 times, resulting in a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 10550.28571428
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.

The final outcome is 10550.28571428, with a leftover of 3.6e-08.