We're dividing 75337560 by 257 
The aim is to understand the frequency of 257 in 75337560.

Advancing to step 1:
The number 257 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 257

Step 2:
If we divide 75 by 257, we get 0 and a remainder of 75.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Include the next digit (3) from the dividend after 75, then repeat: 753 / 257

Moving on to step 3:
257 can be fit into 753 2 times, resulting in a remainder of 239.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 514 from 753, we get 239.
Bring next digit (3) of the dividend behind the 239 and repeat the process: 2393 / 257

Moving on to step 4:
257 can be fit into 2393 9 times, resulting in a remainder of 80.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Subtracting 2313 from 2393 leaves us with 80.
Fetch the next digit (7) from the dividend, attach it to 80 and continue: 807 / 257

Going ahead to step 5:
The number 257 fits into 807 3 times, leaving a remainder of 36.
Write down 3 as next digit of the result. 
Result so far: 293.0
Subtract 771 from 807 to get 36.
Include the next digit (5) from the dividend after 36, then repeat: 365 / 257

On to step 6:
365 divided by 257 is 1 with a remainder of 108.
Use 1 as the next digit of our solution. 
Result so far: 2931.0
Subtract 257 from 365 to get 108.
Include the next digit (6) from the dividend after 108, then repeat: 1086 / 257

Step 7:
If we divide 1086 by 257, we get 4 and a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 29314.0
Deduct 1028 from 1086 and we're left with 58.
Take the next digit (0) from the dividend and append it to 58, then repeat: 580 / 257

Let's proceed to step 8:
580 divided by 257 is 2 with a remainder of 66.
Use 2 as the next digit of our solution. 
Result so far: 293142.0
Deduct 514 from 580 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 9:
257 can be fit into 660 2 times, resulting in a remainder of 146.
Record the quotient 2 as the next digit in the result. 
Result so far: 293142.2
If we subtract 514 from 660, we get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Step 10:
257 goes into 1460 5 times with a remainder of 175.
The number 5 becomes the next digit in our result. 
Result so far: 293142.25
Subtracting 1285 from 1460 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

On to step 11:
The number 257 fits into 1750 6 times, leaving a remainder of 208.
Write down 6 as next digit of the result. 
Result so far: 293142.256
Subtract 1542 from 1750 to get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Moving on to step 12:
When dividing 2080 by 257, we get 8 with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 293142.2568
If we take 2056 away from 2080, we end up 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.

Step 13:
When dividing 240 by 257, we get 0 with a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 293142.2568
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 14:
257 can be fit into 2400 9 times, resulting in a remainder of 87.
Record the quotient 9 as the next digit in the result. 
Result so far: 293142.256809
The remainder is 87 after subtracting 2313 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 15:
257 goes into 870 3 times with a remainder of 99.
Use 3 as the next digit of our solution. 
Result so far: 293142.2568093
If we subtract 771 from 870, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

On to step 16:
257 goes into 990 3 times with a remainder of 219.
Use 3 as the next digit of our solution. 
Result so far: 293142.25680933
Subtracting 771 from 990 leaves us with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

The final result is 293142.25680933 with a remainder of 2.19e-07.