We look at the division of 501007 by 63 
The aim is to understand the frequency of 63 in 501007.

On to step 1:
63 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 63

Let's proceed to step 2:
63 can be fit into 50 0 times, resulting in a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 50, we end up with 50.
Fetch the next digit (1) from the dividend, attach it to 50 and continue: 501 / 63

Let's proceed to step 3:
If we divide 501 by 63, we get 7 and a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 441 away from 501, we end up with 60.
Grab the next digit (0) from the dividend, add it to 60, then carry on: 600 / 63

Let's proceed to step 4:
When dividing 600 by 63, we get 9 with a remainder of 33.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
If we subtract 567 from 600, we get 33.
Grab the next digit (0) from the dividend, add it to 33, then carry on: 330 / 63

Step 5:
If we divide 330 by 63, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 795.0
The remainder is 15 after subtracting 315 from 330.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 63

Let's proceed to step 6:
63 goes into 157 2 times with a remainder of 31.
The next digit of our result is 2. 
Result so far: 7952.0
If we subtract 126 from 157, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 7:
When dividing 310 by 63, we get 4 with a remainder of 58.
Write down 4 as next digit of the result. 
Result so far: 7952.4
The remainder is 58 after subtracting 252 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 8:
When dividing 580 by 63, we get 9 with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 7952.49
Subtracting 567 from 580 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 9:
63 can be fit into 130 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 7952.492
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
When dividing 40 by 63, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 7952.492
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
The number 63 fits into 400 6 times, leaving a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 7952.49206
The remainder is 22 after subtracting 378 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 12:
The number 63 fits into 220 3 times, leaving a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 7952.492063
If we take 189 away from 220, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 13:
When dividing 310 by 63, we get 4 with a remainder of 58.
The next digit of our result is 4. 
Result so far: 7952.4920634
Subtracting 252 from 310 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 14:
If we divide 580 by 63, we get 9 and a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 7952.49206349
Subtract 567 from 580 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 7952.49206349, with a leftover of 1.3e-08.