We look at the division of 78215595 by 963 
The aim is to understand the frequency of 963 in 78215595.

Step 1:
7 divided by 963 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 963

Let's proceed to step 2:
If we divide 78 by 963, we get 0 and a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Include the next digit (2) from the dividend after 78, then repeat: 782 / 963

Step 3:
If we divide 782 by 963, we get 0 and a remainder of 782.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 782 and we're left with 782.
Fetch the next digit (1) from the dividend, attach it to 782 and continue: 7821 / 963

Advancing to step 4:
963 can be fit into 7821 8 times, resulting in a remainder of 117.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 7704 from 7821 leaves us with 117.
Bring next digit (5) of the dividend behind the 117 and repeat the process: 1175 / 963

On to step 5:
If we divide 1175 by 963, we get 1 and a remainder of 212.
Use 1 as the next digit of our solution. 
Result so far: 81.0
The remainder is 212 after subtracting 963 from 1175.
Bring next digit (5) of the dividend behind the 212 and repeat the process: 2125 / 963

Moving on to step 6:
2125 divided by 963 is 2 with a remainder of 199.
The next digit of our result is 2. 
Result so far: 812.0
Deduct 1926 from 2125 and we're left with 199.
Grab the next digit (9) from the dividend, add it to 199, then carry on: 1999 / 963

Let's proceed to step 7:
963 goes into 1999 2 times with a remainder of 73.
Record the quotient 2 as the next digit in the result. 
Result so far: 8122.0
The remainder is 73 after subtracting 1926 from 1999.
Take the next digit (5) from the dividend and append it to 73, then repeat: 735 / 963

Going ahead to step 8:
963 goes into 735 0 times with a remainder of 735.
Record the quotient 0 as the next digit in the result. 
Result so far: 81220.0
If we subtract 0 from 735, we get 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

On to step 9:
If we divide 7350 by 963, we get 7 and a remainder of 609.
Record the quotient 7 as the next digit in the result. 
Result so far: 81220.7
The remainder is 609 after subtracting 6741 from 7350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Let's proceed to step 10:
6090 divided by 963 is 6 with a remainder of 312.
Write down 6 as next digit of the result. 
Result so far: 81220.76
Subtracting 5778 from 6090 leaves us with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 11:
The number 963 fits into 3120 3 times, leaving a remainder of 231.
Put 3 as the next digit of the answer. 
Result so far: 81220.763
If we take 2889 away from 3120, we end up with 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Step 12:
If we divide 2310 by 963, we get 2 and a remainder of 384.
Use 2 as the next digit of our solution. 
Result so far: 81220.7632
Subtracting 1926 from 2310 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Advancing to step 13:
If we divide 3840 by 963, we get 3 and a remainder of 951.
Use 3 as the next digit of our solution. 
Result so far: 81220.76323
Deduct 2889 from 3840 and we're left with 951.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9510, and continue the process.

Let's proceed to step 14:
If we divide 9510 by 963, we get 9 and a remainder of 843.
Write down 9 as next digit of the result. 
Result so far: 81220.763239
Subtracting 8667 from 9510 leaves us with 843.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8430, and continue the process.

Step 15:
When dividing 8430 by 963, we get 8 with a remainder of 726.
Record the quotient 8 as the next digit in the result. 
Result so far: 81220.7632398
The remainder is 726 after subtracting 7704 from 8430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7260, and continue the process.

Step 16:
7260 divided by 963 is 7 with a remainder of 519.
Put 7 as the next digit of the answer. 
Result so far: 81220.76323987
If we take 6741 away from 7260, we end up with 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

The final outcome is 81220.76323987, with a leftover of 5.19e-07.