We look at the division of 76171425 by 665 
The aim is to understand the frequency of 665 in 76171425.

Going ahead to step 1:
When dividing 7 by 665, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 665

Moving on to step 2:
665 goes into 76 0 times with a remainder of 76.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 76 and we're left with 76.
Grab the next digit (1) from the dividend, add it to 76, then carry on: 761 / 665

Step 3:
665 goes into 761 1 times with a remainder of 96.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 665 from 761 to get 96.
Include the next digit (7) from the dividend after 96, then repeat: 967 / 665

Step 4:
665 goes into 967 1 times with a remainder of 302.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we take 665 away from 967, we end up with 302.
Include the next digit (1) from the dividend after 302, then repeat: 3021 / 665

Let's proceed to step 5:
If we divide 3021 by 665, we get 4 and a remainder of 361.
Record the quotient 4 as the next digit in the result. 
Result so far: 114.0
Deduct 2660 from 3021 and we're left with 361.
Take the next digit (4) from the dividend and append it to 361, then repeat: 3614 / 665

Going ahead to step 6:
The number 665 fits into 3614 5 times, leaving a remainder of 289.
Write down 5 as next digit of the result. 
Result so far: 1145.0
The remainder is 289 after subtracting 3325 from 3614.
Bring next digit (2) of the dividend behind the 289 and repeat the process: 2892 / 665

Step 7:
The number 665 fits into 2892 4 times, leaving a remainder of 232.
Use 4 as the next digit of our solution. 
Result so far: 11454.0
Subtracting 2660 from 2892 leaves us with 232.
Include the next digit (5) from the dividend after 232, then repeat: 2325 / 665

Moving on to step 8:
The number 665 fits into 2325 3 times, leaving a remainder of 330.
The number 3 becomes the next digit in our result. 
Result so far: 114543.0
Subtracting 1995 from 2325 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 9:
665 goes into 3300 4 times with a remainder of 640.
Use 4 as the next digit of our solution. 
Result so far: 114543.4
Subtracting 2660 from 3300 leaves us with 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 10:
665 can be fit into 6400 9 times, resulting in a remainder of 415.
The next digit of our result is 9. 
Result so far: 114543.49
If we take 5985 away from 6400, we end up with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Step 11:
665 goes into 4150 6 times with a remainder of 160.
Record the quotient 6 as the next digit in the result. 
Result so far: 114543.496
Subtracting 3990 from 4150 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 12:
665 can be fit into 1600 2 times, resulting in a remainder of 270.
The number 2 becomes the next digit in our result. 
Result so far: 114543.4962
Subtracting 1330 from 1600 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Advancing to step 13:
665 goes into 2700 4 times with a remainder of 40.
The next digit of our result is 4. 
Result so far: 114543.49624
Subtract 2660 from 2700 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 14:
When dividing 400 by 665, we get 0 with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 114543.49624
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 15:
4000 divided by 665 is 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 114543.4962406
If we subtract 3990 from 4000, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 16:
665 goes into 100 0 times with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 114543.4962406
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 114543.4962406 and a remainder of 1e-07.