We look at the division of 87676083 by 257 
The aim is to understand the frequency of 257 in 87676083.

Step 1:
257 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 257

Advancing to step 2:
If we divide 87 by 257, we get 0 and a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Take the next digit (6) from the dividend and append it to 87, then repeat: 876 / 257

Advancing to step 3:
The number 257 fits into 876 3 times, leaving a remainder of 105.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 771 from 876 leaves us with 105.
Bring next digit (7) of the dividend behind the 105 and repeat the process: 1057 / 257

Advancing to step 4:
If we divide 1057 by 257, we get 4 and a remainder of 29.
Put 4 as the next digit of the answer. 
Result so far: 34.0
Subtracting 1028 from 1057 leaves us with 29.
Take the next digit (6) from the dividend and append it to 29, then repeat: 296 / 257

Step 5:
296 divided by 257 is 1 with a remainder of 39.
The next digit of our result is 1. 
Result so far: 341.0
If we take 257 away from 296, we end up with 39.
Bring next digit (0) of the dividend behind the 39 and repeat the process: 390 / 257

Going ahead to step 6:
257 goes into 390 1 times with a remainder of 133.
Use 1 as the next digit of our solution. 
Result so far: 3411.0
If we take 257 away from 390, we end up with 133.
Include the next digit (8) from the dividend after 133, then repeat: 1338 / 257

Advancing to step 7:
If we divide 1338 by 257, we get 5 and a remainder of 53.
The number 5 becomes the next digit in our result. 
Result so far: 34115.0
Subtracting 1285 from 1338 leaves us with 53.
Take the next digit (3) from the dividend and append it to 53, then repeat: 533 / 257

Moving on to step 8:
When dividing 533 by 257, we get 2 with a remainder of 19.
The next digit of our result is 2. 
Result so far: 341152.0
If we subtract 514 from 533, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
If we divide 190 by 257, we get 0 and a remainder of 190.
Write down 0 as next digit of the result. 
Result so far: 341152.0
Subtracting 0 from 190 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 10:
When dividing 1900 by 257, we get 7 with a remainder of 101.
The number 7 becomes the next digit in our result. 
Result so far: 341152.07
Subtracting 1799 from 1900 leaves us with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Step 11:
The number 257 fits into 1010 3 times, leaving a remainder of 239.
The next digit of our result is 3. 
Result so far: 341152.073
Subtracting 771 from 1010 leaves us with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Moving on to step 12:
257 can be fit into 2390 9 times, resulting in a remainder of 77.
Write down 9 as next digit of the result. 
Result so far: 341152.0739
Subtracting 2313 from 2390 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Let's proceed to step 13:
When dividing 770 by 257, we get 2 with a remainder of 256.
Record the quotient 2 as the next digit in the result. 
Result so far: 341152.07392
If we subtract 514 from 770, we 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.

Going ahead to step 14:
2560 divided by 257 is 9 with a remainder of 247.
Record the quotient 9 as the next digit in the result. 
Result so far: 341152.073929
Subtract 2313 from 2560 to get 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Step 15:
257 can be fit into 2470 9 times, resulting in a remainder of 157.
Use 9 as the next digit of our solution. 
Result so far: 341152.0739299
If we take 2313 away from 2470, we end up with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

The final outcome is 341152.0739299, with a leftover of 1.57e-06.