We look at the division of 525053 by 458 
The aim is to understand the frequency of 458 in 525053.

Moving on to step 1:
When dividing 5 by 458, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 458

On to step 2:
If we divide 52 by 458, we get 0 and a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Take the next digit (5) from the dividend and append it to 52, then repeat: 525 / 458

Moving on to step 3:
The number 458 fits into 525 1 times, leaving a remainder of 67.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 458 from 525 leaves us with 67.
Fetch the next digit (0) from the dividend, attach it to 67 and continue: 670 / 458

Moving on to step 4:
The number 458 fits into 670 1 times, leaving a remainder of 212.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we take 458 away from 670, we end up with 212.
Take the next digit (5) from the dividend and append it to 212, then repeat: 2125 / 458

Advancing to step 5:
2125 divided by 458 is 4 with a remainder of 293.
Put 4 as the next digit of the answer. 
Result so far: 114.0
If we subtract 1832 from 2125, we get 293.
Take the next digit (3) from the dividend and append it to 293, then repeat: 2933 / 458

Step 6:
2933 divided by 458 is 6 with a remainder of 185.
Write down 6 as next digit of the result. 
Result so far: 1146.0
Deduct 2748 from 2933 and we're left with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 7:
458 can be fit into 1850 4 times, resulting in a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 1146.4
If we subtract 1832 from 1850, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 8:
458 can be fit into 180 0 times, resulting in a remainder of 180.
Use 0 as the next digit of our solution. 
Result so far: 1146.4
Deduct 0 from 180 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 9:
458 goes into 1800 3 times with a remainder of 426.
Put 3 as the next digit of the answer. 
Result so far: 1146.403
If we subtract 1374 from 1800, we get 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

On to step 10:
458 goes into 4260 9 times with a remainder of 138.
Record the quotient 9 as the next digit in the result. 
Result so far: 1146.4039
Deduct 4122 from 4260 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 11:
When dividing 1380 by 458, we get 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 1146.40393
If we subtract 1374 from 1380, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
458 goes into 60 0 times with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 1146.40393
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 13:
600 divided by 458 is 1 with a remainder of 142.
Record the quotient 1 as the next digit in the result. 
Result so far: 1146.4039301
If we subtract 458 from 600, we get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Let's proceed to step 14:
When dividing 1420 by 458, we get 3 with a remainder of 46.
Use 3 as the next digit of our solution. 
Result so far: 1146.40393013
If we take 1374 away from 1420, we end up 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.

After the division, we end up with 1146.40393013 and a remainder of 4.6e-08.