We're dividing 6399330 by 960 
The aim is to understand the frequency of 960 in 6399330.

Moving on to step 1:
The number 960 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 960

Moving on to step 2:
If we divide 63 by 960, we get 0 and a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Bring next digit (9) of the dividend behind the 63 and repeat the process: 639 / 960

Going ahead to step 3:
The number 960 fits into 639 0 times, leaving a remainder of 639.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 639 after subtracting 0 from 639.
Grab the next digit (9) from the dividend, add it to 639, then carry on: 6399 / 960

On to step 4:
When dividing 6399 by 960, we get 6 with a remainder of 639.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 639 after subtracting 5760 from 6399.
Grab the next digit (3) from the dividend, add it to 639, then carry on: 6393 / 960

Let's proceed to step 5:
960 can be fit into 6393 6 times, resulting in a remainder of 633.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
Deduct 5760 from 6393 and we're left with 633.
Include the next digit (3) from the dividend after 633, then repeat: 6333 / 960

On to step 6:
960 can be fit into 6333 6 times, resulting in a remainder of 573.
Use 6 as the next digit of our solution. 
Result so far: 666.0
If we subtract 5760 from 6333, we get 573.
Include the next digit (0) from the dividend after 573, then repeat: 5730 / 960

Going ahead to step 7:
If we divide 5730 by 960, we get 5 and a remainder of 930.
Put 5 as the next digit of the answer. 
Result so far: 6665.0
Deduct 4800 from 5730 and we're left with 930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9300, and continue the process.

Moving on to step 8:
When dividing 9300 by 960, we get 9 with a remainder of 660.
The next digit of our result is 9. 
Result so far: 6665.9
Deduct 8640 from 9300 and we're left with 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Step 9:
The number 960 fits into 6600 6 times, leaving a remainder of 840.
The next digit of our result is 6. 
Result so far: 6665.96
Deduct 5760 from 6600 and we're left with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Moving on to step 10:
8400 divided by 960 is 8 with a remainder of 720.
Write down 8 as next digit of the result. 
Result so far: 6665.968
Subtracting 7680 from 8400 leaves us with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Let's proceed to step 11:
When dividing 7200 by 960, we get 7 with a remainder of 480.
The number 7 becomes the next digit in our result. 
Result so far: 6665.9687
If we subtract 6720 from 7200, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 12:
If we divide 4800 by 960, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 6665.96875
Subtracting 4800 from 4800 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
960 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 6665.96875
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 14:
If we divide 0 by 960, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6665.96875
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 6665.96875, with a leftover of 0.0.