We're dividing 64671903 by 963 
The aim is to understand the frequency of 963 in 64671903.

Advancing to step 1:
The number 963 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 963

Advancing to step 2:
963 goes into 64 0 times with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Append the next digit (6) from the dividend to 64 and continue with: 646 / 963

Let's proceed to step 3:
963 can be fit into 646 0 times, resulting in a remainder of 646.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 646, we end up with 646.
Fetch the next digit (7) from the dividend, attach it to 646 and continue: 6467 / 963

Step 4:
If we divide 6467 by 963, we get 6 and a remainder of 689.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 5778 from 6467 to get 689.
Include the next digit (1) from the dividend after 689, then repeat: 6891 / 963

Step 5:
963 can be fit into 6891 7 times, resulting in a remainder of 150.
The next digit of our result is 7. 
Result so far: 67.0
If we take 6741 away from 6891, we end up with 150.
Include the next digit (9) from the dividend after 150, then repeat: 1509 / 963

Let's proceed to step 6:
The number 963 fits into 1509 1 times, leaving a remainder of 546.
Record the quotient 1 as the next digit in the result. 
Result so far: 671.0
Deduct 963 from 1509 and we're left with 546.
Include the next digit (0) from the dividend after 546, then repeat: 5460 / 963

Going ahead to step 7:
963 can be fit into 5460 5 times, resulting in a remainder of 645.
The number 5 becomes the next digit in our result. 
Result so far: 6715.0
If we subtract 4815 from 5460, we get 645.
Bring next digit (3) of the dividend behind the 645 and repeat the process: 6453 / 963

Going ahead to step 8:
963 can be fit into 6453 6 times, resulting in a remainder of 675.
Put 6 as the next digit of the answer. 
Result so far: 67156.0
Subtracting 5778 from 6453 leaves us with 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

On to step 9:
If we divide 6750 by 963, we get 7 and a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 67156.7
The remainder is 9 after subtracting 6741 from 6750.
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 10:
If we divide 90 by 963, we get 0 and a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 67156.7
If we subtract 0 from 90, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 11:
The number 963 fits into 900 0 times, leaving a remainder of 900.
Record the quotient 0 as the next digit in the result. 
Result so far: 67156.7
If we take 0 away from 900, we end up with 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9000, and continue the process.

The final outcome is 67156.7, with a leftover of 0.09.