50619598 divided by 258 
The aim is to understand the frequency of 258 in 50619598.

Moving on to step 1:
If we divide 5 by 258, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 258

Going ahead to step 2:
The number 258 fits into 50 0 times, leaving a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 50, we get 50.
Include the next digit (6) from the dividend after 50, then repeat: 506 / 258

Moving on to step 3:
258 goes into 506 1 times with a remainder of 248.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 258 from 506 and we're left with 248.
Take the next digit (1) from the dividend and append it to 248, then repeat: 2481 / 258

On to step 4:
258 can be fit into 2481 9 times, resulting in a remainder of 159.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtract 2322 from 2481 to get 159.
Include the next digit (9) from the dividend after 159, then repeat: 1599 / 258

Let's proceed to step 5:
The number 258 fits into 1599 6 times, leaving a remainder of 51.
The next digit of our result is 6. 
Result so far: 196.0
Deduct 1548 from 1599 and we're left with 51.
Fetch the next digit (5) from the dividend, attach it to 51 and continue: 515 / 258

Let's proceed to step 6:
The number 258 fits into 515 1 times, leaving a remainder of 257.
Use 1 as the next digit of our solution. 
Result so far: 1961.0
If we subtract 258 from 515, we get 257.
Append the next digit (9) from the dividend to 257 and continue with: 2579 / 258

Let's proceed to step 7:
258 can be fit into 2579 9 times, resulting in a remainder of 257.
Use 9 as the next digit of our solution. 
Result so far: 19619.0
Subtracting 2322 from 2579 leaves us with 257.
Append the next digit (8) from the dividend to 257 and continue with: 2578 / 258

Going ahead to step 8:
When dividing 2578 by 258, we get 9 with a remainder of 256.
The number 9 becomes the next digit in our result. 
Result so far: 196199.0
Subtract 2322 from 2578 to 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.

Moving on to step 9:
2560 divided by 258 is 9 with a remainder of 238.
Write down 9 as next digit of the result. 
Result so far: 196199.9
The remainder is 238 after subtracting 2322 from 2560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 10:
258 goes into 2380 9 times with a remainder of 58.
Use 9 as the next digit of our solution. 
Result so far: 196199.99
If we take 2322 away from 2380, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 196199.99, with a leftover of 0.058.