12380591 divided by 963 
The aim is to understand the frequency of 963 in 12380591.

Let's proceed to step 1:
If we divide 1 by 963, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 963

Step 2:
12 divided by 963 is 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 963

Going ahead to step 3:
If we divide 123 by 963, we get 0 and a remainder of 123.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 123 to get 123.
Take the next digit (8) from the dividend and append it to 123, then repeat: 1238 / 963

On to step 4:
The number 963 fits into 1238 1 times, leaving a remainder of 275.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 275 after subtracting 963 from 1238.
Fetch the next digit (0) from the dividend, attach it to 275 and continue: 2750 / 963

On to step 5:
The number 963 fits into 2750 2 times, leaving a remainder of 824.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 1926 from 2750 to get 824.
Append the next digit (5) from the dividend to 824 and continue with: 8245 / 963

Step 6:
963 goes into 8245 8 times with a remainder of 541.
Record the quotient 8 as the next digit in the result. 
Result so far: 128.0
Subtract 7704 from 8245 to get 541.
Bring next digit (9) of the dividend behind the 541 and repeat the process: 5419 / 963

Going ahead to step 7:
If we divide 5419 by 963, we get 5 and a remainder of 604.
Use 5 as the next digit of our solution. 
Result so far: 1285.0
Subtracting 4815 from 5419 leaves us with 604.
Grab the next digit (1) from the dividend, add it to 604, then carry on: 6041 / 963

Step 8:
963 can be fit into 6041 6 times, resulting in a remainder of 263.
The next digit of our result is 6. 
Result so far: 12856.0
Subtracting 5778 from 6041 leaves us with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Going ahead to step 9:
963 goes into 2630 2 times with a remainder of 704.
Write down 2 as next digit of the result. 
Result so far: 12856.2
If we subtract 1926 from 2630, we get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

Advancing to step 10:
963 goes into 7040 7 times with a remainder of 299.
Record the quotient 7 as the next digit in the result. 
Result so far: 12856.27
Subtracting 6741 from 7040 leaves us with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Advancing to step 11:
When dividing 2990 by 963, we get 3 with a remainder of 101.
Record the quotient 3 as the next digit in the result. 
Result so far: 12856.273
Deduct 2889 from 2990 and we're left with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

On to step 12:
1010 divided by 963 is 1 with a remainder of 47.
Use 1 as the next digit of our solution. 
Result so far: 12856.2731
The remainder is 47 after subtracting 963 from 1010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 13:
470 divided by 963 is 0 with a remainder of 470.
The next digit of our result is 0. 
Result so far: 12856.2731
If we subtract 0 from 470, we get 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Let's proceed to step 14:
If we divide 4700 by 963, we get 4 and a remainder of 848.
Put 4 as the next digit of the answer. 
Result so far: 12856.273104
Subtracting 3852 from 4700 leaves us with 848.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

Let's proceed to step 15:
When dividing 8480 by 963, we get 8 with a remainder of 776.
Use 8 as the next digit of our solution. 
Result so far: 12856.2731048
If we take 7704 away from 8480, we end up with 776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Advancing to step 16:
7760 divided by 963 is 8 with a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 12856.27310488
Subtracting 7704 from 7760 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 12856.27310488 and a remainder of 5.6e-08.