We're dividing 90021268 by 768 
The aim is to understand the frequency of 768 in 90021268.

Step 1:
The number 768 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 768

Moving on to step 2:
90 divided by 768 is 0 with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Append the next digit (0) from the dividend to 90 and continue with: 900 / 768

On to step 3:
When dividing 900 by 768, we get 1 with a remainder of 132.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 132 after subtracting 768 from 900.
Fetch the next digit (2) from the dividend, attach it to 132 and continue: 1322 / 768

Advancing to step 4:
When dividing 1322 by 768, we get 1 with a remainder of 554.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Deduct 768 from 1322 and we're left with 554.
Grab the next digit (1) from the dividend, add it to 554, then carry on: 5541 / 768

Let's proceed to step 5:
The number 768 fits into 5541 7 times, leaving a remainder of 165.
The next digit of our result is 7. 
Result so far: 117.0
The remainder is 165 after subtracting 5376 from 5541.
Append the next digit (2) from the dividend to 165 and continue with: 1652 / 768

Moving on to step 6:
768 goes into 1652 2 times with a remainder of 116.
The next digit of our result is 2. 
Result so far: 1172.0
Subtract 1536 from 1652 to get 116.
Append the next digit (6) from the dividend to 116 and continue with: 1166 / 768

Moving on to step 7:
If we divide 1166 by 768, we get 1 and a remainder of 398.
The number 1 becomes the next digit in our result. 
Result so far: 11721.0
Subtract 768 from 1166 to get 398.
Fetch the next digit (8) from the dividend, attach it to 398 and continue: 3988 / 768

Step 8:
3988 divided by 768 is 5 with a remainder of 148.
The number 5 becomes the next digit in our result. 
Result so far: 117215.0
Deduct 3840 from 3988 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 9:
768 can be fit into 1480 1 times, resulting in a remainder of 712.
Use 1 as the next digit of our solution. 
Result so far: 117215.1
Deduct 768 from 1480 and we're left with 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Let's proceed to step 10:
The number 768 fits into 7120 9 times, leaving a remainder of 208.
The next digit of our result is 9. 
Result so far: 117215.19
If we take 6912 away from 7120, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 11:
If we divide 2080 by 768, we get 2 and a remainder of 544.
Write down 2 as next digit of the result. 
Result so far: 117215.192
Deduct 1536 from 2080 and we're left with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Moving on to step 12:
768 can be fit into 5440 7 times, resulting in a remainder of 64.
The number 7 becomes the next digit in our result. 
Result so far: 117215.1927
Deduct 5376 from 5440 and we're left 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.

Going ahead to step 13:
When dividing 640 by 768, we get 0 with a remainder of 640.
Write down 0 as next digit of the result. 
Result so far: 117215.1927
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.

Going ahead to step 14:
The number 768 fits into 6400 8 times, leaving a remainder of 256.
Put 8 as the next digit of the answer. 
Result so far: 117215.192708
The remainder is 256 after subtracting 6144 from 6400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Moving on to step 15:
If we divide 2560 by 768, we get 3 and a remainder of 256.
Write down 3 as next digit of the result. 
Result so far: 117215.1927083
If we take 2304 away from 2560, we end up 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.

Going ahead to step 16:
If we divide 2560 by 768, we get 3 and a remainder of 256.
The number 3 becomes the next digit in our result. 
Result so far: 117215.19270833
Subtract 2304 from 2560 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

The quotient of the division is 117215.19270833, and the remainder is 2.56e-07.