We're dividing 58720144 by 257 
The aim is to understand the frequency of 257 in 58720144.

Step 1:
257 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 257

Moving on to step 2:
If we divide 58 by 257, we get 0 and a remainder of 58.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 58 and we're left with 58.
Bring next digit (7) of the dividend behind the 58 and repeat the process: 587 / 257

On to step 3:
257 can be fit into 587 2 times, resulting in a remainder of 73.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 514 away from 587, we end up with 73.
Append the next digit (2) from the dividend to 73 and continue with: 732 / 257

Moving on to step 4:
257 goes into 732 2 times with a remainder of 218.
The next digit of our result is 2. 
Result so far: 22.0
If we take 514 away from 732, we end up with 218.
Take the next digit (0) from the dividend and append it to 218, then repeat: 2180 / 257

Let's proceed to step 5:
When dividing 2180 by 257, we get 8 with a remainder of 124.
Record the quotient 8 as the next digit in the result. 
Result so far: 228.0
Deduct 2056 from 2180 and we're left with 124.
Take the next digit (1) from the dividend and append it to 124, then repeat: 1241 / 257

Let's proceed to step 6:
When dividing 1241 by 257, we get 4 with a remainder of 213.
Use 4 as the next digit of our solution. 
Result so far: 2284.0
Subtract 1028 from 1241 to get 213.
Fetch the next digit (4) from the dividend, attach it to 213 and continue: 2134 / 257

On to step 7:
257 can be fit into 2134 8 times, resulting in a remainder of 78.
Write down 8 as next digit of the result. 
Result so far: 22848.0
Deduct 2056 from 2134 and we're left with 78.
Bring next digit (4) of the dividend behind the 78 and repeat the process: 784 / 257

On to step 8:
If we divide 784 by 257, we get 3 and a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 228483.0
If we subtract 771 from 784, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
The number 257 fits into 130 0 times, leaving a remainder of 130.
Put 0 as the next digit of the answer. 
Result so far: 228483.0
Deduct 0 from 130 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 10:
The number 257 fits into 1300 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 228483.05
Subtracting 1285 from 1300 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 11:
If we divide 150 by 257, we get 0 and a remainder of 150.
Put 0 as the next digit of the answer. 
Result so far: 228483.05
Deduct 0 from 150 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 12:
If we divide 1500 by 257, we get 5 and a remainder of 215.
The number 5 becomes the next digit in our result. 
Result so far: 228483.0505
Subtract 1285 from 1500 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Advancing to step 13:
2150 divided by 257 is 8 with a remainder of 94.
Record the quotient 8 as the next digit in the result. 
Result so far: 228483.05058
The remainder is 94 after subtracting 2056 from 2150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 14:
257 goes into 940 3 times with a remainder of 169.
The number 3 becomes the next digit in our result. 
Result so far: 228483.050583
Subtract 771 from 940 to get 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Step 15:
257 goes into 1690 6 times with a remainder of 148.
Use 6 as the next digit of our solution. 
Result so far: 228483.0505836
If we subtract 1542 from 1690, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 16:
257 can be fit into 1480 5 times, resulting in a remainder of 195.
The next digit of our result is 5. 
Result so far: 228483.05058365
If we subtract 1285 from 1480, we get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

The final result is 228483.05058365 with a remainder of 1.95e-07.