93259592 ÷ 15 
The aim is to understand the frequency of 15 in 93259592.

Advancing to step 1:
15 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 15

Step 2:
15 can be fit into 93 6 times, resulting in a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 90 from 93 and we're left with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 15

Advancing to step 3:
The number 15 fits into 32 2 times, leaving a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 62.0
If we subtract 30 from 32, we get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 15

Going ahead to step 4:
If we divide 25 by 15, we get 1 and a remainder of 10.
The next digit of our result is 1. 
Result so far: 621.0
The remainder is 10 after subtracting 15 from 25.
Append the next digit (9) from the dividend to 10 and continue with: 109 / 15

Step 5:
15 goes into 109 7 times with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 6217.0
If we subtract 105 from 109, we get 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 15

Let's proceed to step 6:
15 goes into 45 3 times with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 62173.0
If we subtract 45 from 45, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 15

Going ahead to step 7:
15 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 621730.0
Subtract 0 from 9 to get 9.
Append the next digit (2) from the dividend to 9 and continue with: 92 / 15

Step 8:
If we divide 92 by 15, we get 6 and a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 6217306.0
The remainder is 2 after subtracting 90 from 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 9:
15 goes into 20 1 times with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 6217306.1
The remainder is 5 after subtracting 15 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 10:
50 divided by 15 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 6217306.13
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 11:
If we divide 50 by 15, we get 3 and a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 6217306.133
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 6217306.133 with a remaining 0.0005.