586053 divided by 15 
The aim is to understand the frequency of 15 in 586053.

Step 1:
The number 15 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 15

Step 2:
15 goes into 58 3 times with a remainder of 13.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 13 after subtracting 45 from 58.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 15

Let's proceed to step 3:
15 goes into 136 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 39.0
If we take 135 away from 136, we end up with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 15

Advancing to step 4:
15 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 390.0
Deduct 0 from 10 and we're left with 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 15

Let's proceed to step 5:
The number 15 fits into 105 7 times, leaving a remainder of 0.
The next digit of our result is 7. 
Result so far: 3907.0
If we subtract 105 from 105, we get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 15

Moving on to step 6:
15 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 39070.0
Subtract 0 from 3 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
If we divide 30 by 15, we get 2 and a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 39070.2
Deduct 30 from 30 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 15, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39070.2
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
When dividing 0 by 15, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 39070.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 39070.2 with a balance of 0.0.