We're dividing 90159670 by 358 
The aim is to understand the frequency of 358 in 90159670.

On to step 1:
9 divided by 358 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 358

On to step 2:
358 can be fit into 90 0 times, resulting in a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Take the next digit (1) from the dividend and append it to 90, then repeat: 901 / 358

Advancing to step 3:
When dividing 901 by 358, we get 2 with a remainder of 185.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 716 from 901, we get 185.
Bring next digit (5) of the dividend behind the 185 and repeat the process: 1855 / 358

Advancing to step 4:
358 goes into 1855 5 times with a remainder of 65.
The next digit of our result is 5. 
Result so far: 25.0
Subtract 1790 from 1855 to get 65.
Take the next digit (9) from the dividend and append it to 65, then repeat: 659 / 358

Going ahead to step 5:
358 goes into 659 1 times with a remainder of 301.
Put 1 as the next digit of the answer. 
Result so far: 251.0
Deduct 358 from 659 and we're left with 301.
Bring next digit (6) of the dividend behind the 301 and repeat the process: 3016 / 358

Advancing to step 6:
If we divide 3016 by 358, we get 8 and a remainder of 152.
The next digit of our result is 8. 
Result so far: 2518.0
If we subtract 2864 from 3016, we get 152.
Include the next digit (7) from the dividend after 152, then repeat: 1527 / 358

Advancing to step 7:
358 goes into 1527 4 times with a remainder of 95.
Record the quotient 4 as the next digit in the result. 
Result so far: 25184.0
Deduct 1432 from 1527 and we're left with 95.
Bring next digit (0) of the dividend behind the 95 and repeat the process: 950 / 358

Let's proceed to step 8:
950 divided by 358 is 2 with a remainder of 234.
Use 2 as the next digit of our solution. 
Result so far: 251842.0
The remainder is 234 after subtracting 716 from 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

On to step 9:
358 can be fit into 2340 6 times, resulting in a remainder of 192.
Put 6 as the next digit of the answer. 
Result so far: 251842.6
If we subtract 2148 from 2340, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 10:
358 goes into 1920 5 times with a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 251842.65
The remainder is 130 after subtracting 1790 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

On to step 11:
1300 divided by 358 is 3 with a remainder of 226.
Use 3 as the next digit of our solution. 
Result so far: 251842.653
Subtract 1074 from 1300 to get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Going ahead to step 12:
If we divide 2260 by 358, we get 6 and a remainder of 112.
Record the quotient 6 as the next digit in the result. 
Result so far: 251842.6536
If we take 2148 away from 2260, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Moving on to step 13:
When dividing 1120 by 358, we get 3 with a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 251842.65363
Subtracting 1074 from 1120 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 14:
460 divided by 358 is 1 with a remainder of 102.
Use 1 as the next digit of our solution. 
Result so far: 251842.653631
The remainder is 102 after subtracting 358 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 15:
When dividing 1020 by 358, we get 2 with a remainder of 304.
The next digit of our result is 2. 
Result so far: 251842.6536312
If we take 716 away from 1020, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Step 16:
If we divide 3040 by 358, we get 8 and a remainder of 176.
Use 8 as the next digit of our solution. 
Result so far: 251842.65363128
Subtract 2864 from 3040 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Our division results in 251842.65363128 with a remaining 1.76e-07.