We look at the division of 2915715 by 538 
The aim is to understand the frequency of 538 in 2915715.

Step 1:
538 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 538

Going ahead to step 2:
538 goes into 29 0 times with a remainder of 29.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 29 to get 29.
Grab the next digit (1) from the dividend, add it to 29, then carry on: 291 / 538

On to step 3:
The number 538 fits into 291 0 times, leaving a remainder of 291.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 291 and we're left with 291.
Take the next digit (5) from the dividend and append it to 291, then repeat: 2915 / 538

Step 4:
2915 divided by 538 is 5 with a remainder of 225.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 2690 from 2915 to get 225.
Bring next digit (7) of the dividend behind the 225 and repeat the process: 2257 / 538

Moving on to step 5:
538 goes into 2257 4 times with a remainder of 105.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
Deduct 2152 from 2257 and we're left with 105.
Take the next digit (1) from the dividend and append it to 105, then repeat: 1051 / 538

Advancing to step 6:
538 goes into 1051 1 times with a remainder of 513.
Record the quotient 1 as the next digit in the result. 
Result so far: 541.0
Deduct 538 from 1051 and we're left with 513.
Include the next digit (5) from the dividend after 513, then repeat: 5135 / 538

Let's proceed to step 7:
538 can be fit into 5135 9 times, resulting in a remainder of 293.
The number 9 becomes the next digit in our result. 
Result so far: 5419.0
Subtracting 4842 from 5135 leaves us with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Going ahead to step 8:
538 goes into 2930 5 times with a remainder of 240.
Record the quotient 5 as the next digit in the result. 
Result so far: 5419.5
If we take 2690 away from 2930, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 9:
When dividing 2400 by 538, we get 4 with a remainder of 248.
Use 4 as the next digit of our solution. 
Result so far: 5419.54
Subtracting 2152 from 2400 leaves us with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 10:
2480 divided by 538 is 4 with a remainder of 328.
Put 4 as the next digit of the answer. 
Result so far: 5419.544
Subtract 2152 from 2480 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

The quotient of the division is 5419.544, and the remainder is 0.0328.