Let's divide 20354230 by 579
The aim is to understand the frequency of 579 in 20354230.

Moving on to step 1:
2 divided by 579 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 579

Going ahead to step 2:
579 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 579

Going ahead to step 3:
If we divide 203 by 579, we get 0 and a remainder of 203.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 203 to get 203.
Include the next digit (5) from the dividend after 203, then repeat: 2035 / 579

Advancing to step 4:
579 goes into 2035 3 times with a remainder of 298.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 1737 from 2035 leaves us with 298.
Bring next digit (4) of the dividend behind the 298 and repeat the process: 2984 / 579

Going ahead to step 5:
The number 579 fits into 2984 5 times, leaving a remainder of 89.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
Deduct 2895 from 2984 and we're left with 89.
Grab the next digit (2) from the dividend, add it to 89, then carry on: 892 / 579

Step 6:
When dividing 892 by 579, we get 1 with a remainder of 313.
Put 1 as the next digit of the answer. 
Result so far: 351.0
If we subtract 579 from 892, we get 313.
Grab the next digit (3) from the dividend, add it to 313, then carry on: 3133 / 579

Moving on to step 7:
3133 divided by 579 is 5 with a remainder of 238.
Put 5 as the next digit of the answer. 
Result so far: 3515.0
If we subtract 2895 from 3133, we get 238.
Bring next digit (0) of the dividend behind the 238 and repeat the process: 2380 / 579

Advancing to step 8:
2380 divided by 579 is 4 with a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 35154.0
Deduct 2316 from 2380 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 9:
The number 579 fits into 640 1 times, leaving a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 35154.1
Subtract 579 from 640 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 10:
If we divide 610 by 579, we get 1 and a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 35154.11
The remainder is 31 after subtracting 579 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The final outcome is 35154.11, with a leftover of 0.031.