We look at the division of 58434 by 53 
The aim is to understand the frequency of 53 in 58434.

Let's proceed to step 1:
If we divide 5 by 53, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 53

Moving on to step 2:
58 divided by 53 is 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 53 from 58 and we're left with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 53

Let's proceed to step 3:
When dividing 54 by 53, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we take 53 away from 54, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 53

Let's proceed to step 4:
53 goes into 13 0 times with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 110.0
If we subtract 0 from 13, we get 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 53

Step 5:
53 goes into 134 2 times with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 1102.0
The remainder is 28 after subtracting 106 from 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 6:
53 can be fit into 280 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 1102.5
The remainder is 15 after subtracting 265 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
The number 53 fits into 150 2 times, leaving a remainder of 44.
The number 2 becomes the next digit in our result. 
Result so far: 1102.52
Subtract 106 from 150 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 8:
The number 53 fits into 440 8 times, leaving a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 1102.528
If we subtract 424 from 440, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
53 can be fit into 160 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 1102.5283
If we take 159 away from 160, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
53 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1102.5283
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 11:
100 divided by 53 is 1 with a remainder of 47.
Use 1 as the next digit of our solution. 
Result so far: 1102.528301
Subtract 53 from 100 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 12:
If we divide 470 by 53, we get 8 and a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 1102.5283018
Subtract 424 from 470 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 13:
If we divide 460 by 53, we get 8 and a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 1102.52830188
Subtracting 424 from 460 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

After the division, we end up with 1102.52830188 and a remainder of 3.6e-08.