We look at the division of 358085 by 83 
The aim is to understand the frequency of 83 in 358085.

Step 1:
3 divided by 83 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 83

On to step 2:
35 divided by 83 is 0 with a remainder of 35.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Include the next digit (8) from the dividend after 35, then repeat: 358 / 83

On to step 3:
The number 83 fits into 358 4 times, leaving a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 332 from 358 leaves us with 26.
Take the next digit (0) from the dividend and append it to 26, then repeat: 260 / 83

On to step 4:
83 goes into 260 3 times with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Subtracting 249 from 260 leaves us with 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 83

Going ahead to step 5:
83 can be fit into 118 1 times, resulting in a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 431.0
The remainder is 35 after subtracting 83 from 118.
Include the next digit (5) from the dividend after 35, then repeat: 355 / 83

Going ahead to step 6:
If we divide 355 by 83, we get 4 and a remainder of 23.
Write down 4 as next digit of the result. 
Result so far: 4314.0
Subtracting 332 from 355 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
If we divide 230 by 83, we get 2 and a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 4314.2
Subtract 166 from 230 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 8:
If we divide 640 by 83, we get 7 and a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 4314.27
Deduct 581 from 640 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 9:
The number 83 fits into 590 7 times, leaving a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 4314.277
Subtract 581 from 590 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final outcome is 4314.277, with a leftover of 0.0009.