15385215 ÷ 499 
The aim is to understand the frequency of 499 in 15385215.

Step 1:
499 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 499

Advancing to step 2:
When dividing 15 by 499, we get 0 with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 499

Moving on to step 3:
499 goes into 153 0 times with a remainder of 153.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Grab the next digit (8) from the dividend, add it to 153, then carry on: 1538 / 499

Step 4:
499 can be fit into 1538 3 times, resulting in a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 1497 from 1538, we get 41.
Append the next digit (5) from the dividend to 41 and continue with: 415 / 499

Step 5:
499 can be fit into 415 0 times, resulting in a remainder of 415.
Put 0 as the next digit of the answer. 
Result so far: 30.0
Subtracting 0 from 415 leaves us with 415.
Fetch the next digit (2) from the dividend, attach it to 415 and continue: 4152 / 499

Let's proceed to step 6:
If we divide 4152 by 499, we get 8 and a remainder of 160.
The number 8 becomes the next digit in our result. 
Result so far: 308.0
Deduct 3992 from 4152 and we're left with 160.
Grab the next digit (1) from the dividend, add it to 160, then carry on: 1601 / 499

Going ahead to step 7:
The number 499 fits into 1601 3 times, leaving a remainder of 104.
Write down 3 as next digit of the result. 
Result so far: 3083.0
The remainder is 104 after subtracting 1497 from 1601.
Append the next digit (5) from the dividend to 104 and continue with: 1045 / 499

Advancing to step 8:
The number 499 fits into 1045 2 times, leaving a remainder of 47.
Record the quotient 2 as the next digit in the result. 
Result so far: 30832.0
If we subtract 998 from 1045, we 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.

Advancing to step 9:
The number 499 fits into 470 0 times, leaving a remainder of 470.
The next digit of our result is 0. 
Result so far: 30832.0
Subtracting 0 from 470 leaves us with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Moving on to step 10:
If we divide 4700 by 499, we get 9 and a remainder of 209.
The number 9 becomes the next digit in our result. 
Result so far: 30832.09
If we take 4491 away from 4700, we end up with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

On to step 11:
If we divide 2090 by 499, we get 4 and a remainder of 94.
Put 4 as the next digit of the answer. 
Result so far: 30832.094
Subtract 1996 from 2090 to get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 12:
The number 499 fits into 940 1 times, leaving a remainder of 441.
Put 1 as the next digit of the answer. 
Result so far: 30832.0941
Subtracting 499 from 940 leaves us with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Let's proceed to step 13:
499 can be fit into 4410 8 times, resulting in a remainder of 418.
The number 8 becomes the next digit in our result. 
Result so far: 30832.09418
Deduct 3992 from 4410 and we're left with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

On to step 14:
499 goes into 4180 8 times with a remainder of 188.
Use 8 as the next digit of our solution. 
Result so far: 30832.094188
If we take 3992 away from 4180, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

The quotient of the division is 30832.094188, and the remainder is 1.88e-05.