We look at the division of 50808839 by 257 
The aim is to understand the frequency of 257 in 50808839.

On to step 1:
The number 257 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 257

Advancing to step 2:
257 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 50 and we're left with 50.
Fetch the next digit (8) from the dividend, attach it to 50 and continue: 508 / 257

Step 3:
When dividing 508 by 257, we get 1 with a remainder of 251.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 251 after subtracting 257 from 508.
Fetch the next digit (0) from the dividend, attach it to 251 and continue: 2510 / 257

Going ahead to step 4:
If we divide 2510 by 257, we get 9 and a remainder of 197.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 2313 from 2510 to get 197.
Append the next digit (8) from the dividend to 197 and continue with: 1978 / 257

Going ahead to step 5:
The number 257 fits into 1978 7 times, leaving a remainder of 179.
Use 7 as the next digit of our solution. 
Result so far: 197.0
Deduct 1799 from 1978 and we're left with 179.
Include the next digit (8) from the dividend after 179, then repeat: 1798 / 257

On to step 6:
257 goes into 1798 6 times with a remainder of 256.
Write down 6 as next digit of the result. 
Result so far: 1976.0
If we take 1542 away from 1798, we end up with 256.
Append the next digit (3) from the dividend to 256 and continue with: 2563 / 257

Advancing to step 7:
257 can be fit into 2563 9 times, resulting in a remainder of 250.
Use 9 as the next digit of our solution. 
Result so far: 19769.0
Subtract 2313 from 2563 to get 250.
Fetch the next digit (9) from the dividend, attach it to 250 and continue: 2509 / 257

Going ahead to step 8:
If we divide 2509 by 257, we get 9 and a remainder of 196.
The number 9 becomes the next digit in our result. 
Result so far: 197699.0
The remainder is 196 after subtracting 2313 from 2509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 9:
257 goes into 1960 7 times with a remainder of 161.
Write down 7 as next digit of the result. 
Result so far: 197699.7
Deduct 1799 from 1960 and we're left with 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Let's proceed to step 10:
When dividing 1610 by 257, we get 6 with a remainder of 68.
Use 6 as the next digit of our solution. 
Result so far: 197699.76
Deduct 1542 from 1610 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 11:
257 goes into 680 2 times with a remainder of 166.
Put 2 as the next digit of the answer. 
Result so far: 197699.762
If we subtract 514 from 680, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 12:
When dividing 1660 by 257, we get 6 with a remainder of 118.
Record the quotient 6 as the next digit in the result. 
Result so far: 197699.7626
If we subtract 1542 from 1660, we get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 13:
If we divide 1180 by 257, we get 4 and a remainder of 152.
The next digit of our result is 4. 
Result so far: 197699.76264
Subtracting 1028 from 1180 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

On to step 14:
257 can be fit into 1520 5 times, resulting in a remainder of 235.
The next digit of our result is 5. 
Result so far: 197699.762645
Subtract 1285 from 1520 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Going ahead to step 15:
The number 257 fits into 2350 9 times, leaving a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 197699.7626459
The remainder is 37 after subtracting 2313 from 2350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 16:
257 goes into 370 1 times with a remainder of 113.
The next digit of our result is 1. 
Result so far: 197699.76264591
If we subtract 257 from 370, we get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Our division results in 197699.76264591 with a remaining 1.13e-07.