287589 divided by 53 
The aim is to understand the frequency of 53 in 287589.

Step 1:
2 divided by 53 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 53

Step 2:
53 can be fit into 28 0 times, resulting in a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Fetch the next digit (7) from the dividend, attach it to 28 and continue: 287 / 53

Advancing to step 3:
If we divide 287 by 53, we get 5 and a remainder of 22.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 22 after subtracting 265 from 287.
Bring next digit (5) of the dividend behind the 22 and repeat the process: 225 / 53

Moving on to step 4:
225 divided by 53 is 4 with a remainder of 13.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we subtract 212 from 225, we get 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 53

Moving on to step 5:
138 divided by 53 is 2 with a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 542.0
The remainder is 32 after subtracting 106 from 138.
Take the next digit (9) from the dividend and append it to 32, then repeat: 329 / 53

Moving on to step 6:
53 goes into 329 6 times with a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 5426.0
The remainder is 11 after subtracting 318 from 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
When dividing 110 by 53, we get 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 5426.2
Subtracting 106 from 110 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
53 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 5426.2
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 9:
If we divide 400 by 53, we get 7 and a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 5426.207
The remainder is 29 after subtracting 371 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 10:
53 goes into 290 5 times with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 5426.2075
If we take 265 away from 290, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 11:
If we divide 250 by 53, we get 4 and a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 5426.20754
Subtracting 212 from 250 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 12:
If we divide 380 by 53, we get 7 and a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 5426.207547
Subtract 371 from 380 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.

Step 13:
The number 53 fits into 90 1 times, leaving a remainder of 37.
The next digit of our result is 1. 
Result so far: 5426.2075471
If we take 53 away from 90, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 14:
370 divided by 53 is 6 with a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 5426.20754716
If we subtract 318 from 370, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 5426.20754716, with a leftover of 5.2e-08.