We look at the division of 142391 by 76 
The aim is to understand the frequency of 76 in 142391.

Step 1:
76 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 76

Step 2:
14 divided by 76 is 0 with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 76

Step 3:
The number 76 fits into 142 1 times, leaving a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 76 away from 142, we end up with 66.
Bring next digit (3) of the dividend behind the 66 and repeat the process: 663 / 76

Moving on to step 4:
76 can be fit into 663 8 times, resulting in a remainder of 55.
Put 8 as the next digit of the answer. 
Result so far: 18.0
If we subtract 608 from 663, we get 55.
Append the next digit (9) from the dividend to 55 and continue with: 559 / 76

Moving on to step 5:
559 divided by 76 is 7 with a remainder of 27.
The next digit of our result is 7. 
Result so far: 187.0
Deduct 532 from 559 and we're left with 27.
Take the next digit (1) from the dividend and append it to 27, then repeat: 271 / 76

Let's proceed to step 6:
271 divided by 76 is 3 with a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 1873.0
Deduct 228 from 271 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
If we divide 430 by 76, we get 5 and a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 1873.5
Deduct 380 from 430 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
76 can be fit into 500 6 times, resulting in a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 1873.56
If we subtract 456 from 500, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 9:
76 goes into 440 5 times with a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 1873.565
If we subtract 380 from 440, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
600 divided by 76 is 7 with a remainder of 68.
Write down 7 as next digit of the result. 
Result so far: 1873.5657
Subtract 532 from 600 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 11:
The number 76 fits into 680 8 times, leaving a remainder of 72.
The next digit of our result is 8. 
Result so far: 1873.56578
If we subtract 608 from 680, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 12:
76 goes into 720 9 times with a remainder of 36.
The next digit of our result is 9. 
Result so far: 1873.565789
If we subtract 684 from 720, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 13:
If we divide 360 by 76, we get 4 and a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 1873.5657894
Deduct 304 from 360 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 14:
76 goes into 560 7 times with a remainder of 28.
Write down 7 as next digit of the result. 
Result so far: 1873.56578947
Deduct 532 from 560 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

After the division, we end up with 1873.56578947 and a remainder of 2.8e-08.