We look at the division of 75423966 by 76 
The aim is to understand the frequency of 76 in 75423966.

Step 1:
When dividing 7 by 76, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 76

Moving on to step 2:
76 goes into 75 0 times with a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Append the next digit (4) from the dividend to 75 and continue with: 754 / 76

On to step 3:
If we divide 754 by 76, we get 9 and a remainder of 70.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 684 from 754, we get 70.
Take the next digit (2) from the dividend and append it to 70, then repeat: 702 / 76

Step 4:
If we divide 702 by 76, we get 9 and a remainder of 18.
The next digit of our result is 9. 
Result so far: 99.0
Deduct 684 from 702 and we're left with 18.
Include the next digit (3) from the dividend after 18, then repeat: 183 / 76

Let's proceed to step 5:
76 goes into 183 2 times with a remainder of 31.
The next digit of our result is 2. 
Result so far: 992.0
If we take 152 away from 183, we end up with 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 76

Let's proceed to step 6:
When dividing 319 by 76, we get 4 with a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 9924.0
If we subtract 304 from 319, we get 15.
Include the next digit (6) from the dividend after 15, then repeat: 156 / 76

On to step 7:
76 goes into 156 2 times with a remainder of 4.
The next digit of our result is 2. 
Result so far: 99242.0
Subtracting 152 from 156 leaves us with 4.
Bring next digit (6) of the dividend behind the 4 and repeat the process: 46 / 76

Going ahead to step 8:
If we divide 46 by 76, we get 0 and a remainder of 46.
Write down 0 as next digit of the result. 
Result so far: 992420.0
The remainder is 46 after subtracting 0 from 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 9:
When dividing 460 by 76, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 992420.6
If we take 456 away from 460, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
40 divided by 76 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 992420.6
If we take 0 away from 40, we end up 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.

Advancing to step 11:
If we divide 400 by 76, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 992420.605
Subtracting 380 from 400 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 12:
76 can be fit into 200 2 times, resulting in a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 992420.6052
If we take 152 away from 200, we end up 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 13:
When dividing 480 by 76, we get 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 992420.60526
Subtracting 456 from 480 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 14:
The number 76 fits into 240 3 times, leaving a remainder of 12.
The next digit of our result is 3. 
Result so far: 992420.605263
Subtracting 228 from 240 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 15:
76 goes into 120 1 times with a remainder of 44.
Put 1 as the next digit of the answer. 
Result so far: 992420.6052631
If we take 76 away from 120, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 16:
When dividing 440 by 76, we get 5 with a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 992420.60526315
The remainder is 60 after subtracting 380 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 992420.60526315, and the remainder is 6e-08.