We're dividing 90661740 by 768 
The aim is to understand the frequency of 768 in 90661740.

On to step 1:
The number 768 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 768

Step 2:
90 divided by 768 is 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Append the next digit (6) from the dividend to 90 and continue with: 906 / 768

Moving on to step 3:
If we divide 906 by 768, we get 1 and a remainder of 138.
The next digit of our result is 1. 
Result so far: 1.0
If we take 768 away from 906, we end up with 138.
Take the next digit (6) from the dividend and append it to 138, then repeat: 1386 / 768

Going ahead to step 4:
When dividing 1386 by 768, we get 1 with a remainder of 618.
The next digit of our result is 1. 
Result so far: 11.0
Subtract 768 from 1386 to get 618.
Include the next digit (1) from the dividend after 618, then repeat: 6181 / 768

On to step 5:
If we divide 6181 by 768, we get 8 and a remainder of 37.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
The remainder is 37 after subtracting 6144 from 6181.
Grab the next digit (7) from the dividend, add it to 37, then carry on: 377 / 768

Let's proceed to step 6:
The number 768 fits into 377 0 times, leaving a remainder of 377.
The number 0 becomes the next digit in our result. 
Result so far: 1180.0
The remainder is 377 after subtracting 0 from 377.
Bring next digit (4) of the dividend behind the 377 and repeat the process: 3774 / 768

Moving on to step 7:
The number 768 fits into 3774 4 times, leaving a remainder of 702.
The next digit of our result is 4. 
Result so far: 11804.0
Subtracting 3072 from 3774 leaves us with 702.
Fetch the next digit (0) from the dividend, attach it to 702 and continue: 7020 / 768

Moving on to step 8:
768 goes into 7020 9 times with a remainder of 108.
Use 9 as the next digit of our solution. 
Result so far: 118049.0
Subtract 6912 from 7020 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 9:
768 goes into 1080 1 times with a remainder of 312.
The number 1 becomes the next digit in our result. 
Result so far: 118049.1
Subtracting 768 from 1080 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.

Advancing to step 10:
When dividing 3120 by 768, we get 4 with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 118049.14
Subtracting 3072 from 3120 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 11:
480 divided by 768 is 0 with a remainder of 480.
The next digit of our result is 0. 
Result so far: 118049.14
Subtracting 0 from 480 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 12:
768 goes into 4800 6 times with a remainder of 192.
Put 6 as the next digit of the answer. 
Result so far: 118049.1406
Deduct 4608 from 4800 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 13:
768 can be fit into 1920 2 times, resulting in a remainder of 384.
Use 2 as the next digit of our solution. 
Result so far: 118049.14062
Subtracting 1536 from 1920 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.

Going ahead to step 14:
3840 divided by 768 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 118049.140625
If we take 3840 away from 3840, we end up 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.

Moving on to step 15:
768 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 118049.140625
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 16:
If we divide 0 by 768, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 118049.140625
Subtracting 0 from 0 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.

After the division, we end up with 118049.140625 and a remainder of 0.0.