We're dividing 558004 by 53 
The aim is to understand the frequency of 53 in 558004.

Going ahead to step 1:
53 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 53

Moving on to step 2:
53 goes into 55 1 times with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 53 from 55 and we're left with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 53

Moving on to step 3:
53 can be fit into 28 0 times, resulting in a remainder of 28.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 28 leaves us with 28.
Append the next digit (0) from the dividend to 28 and continue with: 280 / 53

On to step 4:
If we divide 280 by 53, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 105.0
Deduct 265 from 280 and we're left with 15.
Append the next digit (0) from the dividend to 15 and continue with: 150 / 53

On to step 5:
53 goes into 150 2 times with a remainder of 44.
The next digit of our result is 2. 
Result so far: 1052.0
If we subtract 106 from 150, we get 44.
Append the next digit (4) from the dividend to 44 and continue with: 444 / 53

Going ahead to step 6:
444 divided by 53 is 8 with a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 10528.0
Subtract 424 from 444 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 7:
53 goes into 200 3 times with a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 10528.3
If we subtract 159 from 200, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 8:
The number 53 fits into 410 7 times, leaving a remainder of 39.
The number 7 becomes the next digit in our result. 
Result so far: 10528.37
Deduct 371 from 410 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
53 goes into 390 7 times with a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 10528.377
Subtract 371 from 390 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final result is 10528.377 with a remainder of 0.0019.