We look at the division of 38552579 by 958 
The aim is to understand the frequency of 958 in 38552579.

Step 1:
3 divided by 958 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 958

Step 2:
958 goes into 38 0 times with a remainder of 38.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 38, we get 38.
Fetch the next digit (5) from the dividend, attach it to 38 and continue: 385 / 958

Let's proceed to step 3:
When dividing 385 by 958, we get 0 with a remainder of 385.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 385 leaves us with 385.
Fetch the next digit (5) from the dividend, attach it to 385 and continue: 3855 / 958

Advancing to step 4:
958 goes into 3855 4 times with a remainder of 23.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 3832 from 3855 leaves us with 23.
Bring next digit (2) of the dividend behind the 23 and repeat the process: 232 / 958

Advancing to step 5:
958 goes into 232 0 times with a remainder of 232.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Subtract 0 from 232 to get 232.
Grab the next digit (5) from the dividend, add it to 232, then carry on: 2325 / 958

On to step 6:
The number 958 fits into 2325 2 times, leaving a remainder of 409.
The next digit of our result is 2. 
Result so far: 402.0
The remainder is 409 after subtracting 1916 from 2325.
Bring next digit (7) of the dividend behind the 409 and repeat the process: 4097 / 958

Going ahead to step 7:
If we divide 4097 by 958, we get 4 and a remainder of 265.
The next digit of our result is 4. 
Result so far: 4024.0
If we subtract 3832 from 4097, we get 265.
Take the next digit (9) from the dividend and append it to 265, then repeat: 2659 / 958

Let's proceed to step 8:
If we divide 2659 by 958, we get 2 and a remainder of 743.
Put 2 as the next digit of the answer. 
Result so far: 40242.0
Deduct 1916 from 2659 and we're left with 743.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7430, and continue the process.

Advancing to step 9:
958 can be fit into 7430 7 times, resulting in a remainder of 724.
Put 7 as the next digit of the answer. 
Result so far: 40242.7
The remainder is 724 after subtracting 6706 from 7430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7240, and continue the process.

Step 10:
958 goes into 7240 7 times with a remainder of 534.
Use 7 as the next digit of our solution. 
Result so far: 40242.77
The remainder is 534 after subtracting 6706 from 7240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

After the division, we end up with 40242.77 and a remainder of 0.534.