66102025 ÷ 768 
The aim is to understand the frequency of 768 in 66102025.

On to step 1:
If we divide 6 by 768, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 768

Advancing to step 2:
768 can be fit into 66 0 times, resulting in a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Take the next digit (1) from the dividend and append it to 66, then repeat: 661 / 768

On to step 3:
The number 768 fits into 661 0 times, leaving a remainder of 661.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 661, we get 661.
Take the next digit (0) from the dividend and append it to 661, then repeat: 6610 / 768

Let's proceed to step 4:
The number 768 fits into 6610 8 times, leaving a remainder of 466.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 466 after subtracting 6144 from 6610.
Bring next digit (2) of the dividend behind the 466 and repeat the process: 4662 / 768

Advancing to step 5:
The number 768 fits into 4662 6 times, leaving a remainder of 54.
The next digit of our result is 6. 
Result so far: 86.0
If we take 4608 away from 4662, we end up with 54.
Bring next digit (0) of the dividend behind the 54 and repeat the process: 540 / 768

On to step 6:
768 goes into 540 0 times with a remainder of 540.
Put 0 as the next digit of the answer. 
Result so far: 860.0
Subtracting 0 from 540 leaves us with 540.
Append the next digit (2) from the dividend to 540 and continue with: 5402 / 768

On to step 7:
5402 divided by 768 is 7 with a remainder of 26.
Put 7 as the next digit of the answer. 
Result so far: 8607.0
Subtracting 5376 from 5402 leaves us with 26.
Grab the next digit (5) from the dividend, add it to 26, then carry on: 265 / 768

On to step 8:
The number 768 fits into 265 0 times, leaving a remainder of 265.
Put 0 as the next digit of the answer. 
Result so far: 86070.0
Subtract 0 from 265 to get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Going ahead to step 9:
2650 divided by 768 is 3 with a remainder of 346.
Use 3 as the next digit of our solution. 
Result so far: 86070.3
Subtracting 2304 from 2650 leaves us with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 10:
768 can be fit into 3460 4 times, resulting in a remainder of 388.
The next digit of our result is 4. 
Result so far: 86070.34
Subtracting 3072 from 3460 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 11:
When dividing 3880 by 768, we get 5 with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 86070.345
Deduct 3840 from 3880 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
The number 768 fits into 400 0 times, leaving a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 86070.345
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 13:
768 goes into 4000 5 times with a remainder of 160.
The number 5 becomes the next digit in our result. 
Result so far: 86070.34505
The remainder is 160 after subtracting 3840 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 14:
1600 divided by 768 is 2 with a remainder of 64.
The next digit of our result is 2. 
Result so far: 86070.345052
Subtracting 1536 from 1600 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 15:
768 can be fit into 640 0 times, resulting in a remainder of 640.
The next digit of our result is 0. 
Result so far: 86070.345052
The remainder is 640 after subtracting 0 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 16:
When dividing 6400 by 768, we get 8 with a remainder of 256.
Write down 8 as next digit of the result. 
Result so far: 86070.34505208
Subtracting 6144 from 6400 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

After the division, we end up with 86070.34505208 and a remainder of 2.56e-07.