We're dividing 15870903 by 104 
The aim is to understand the frequency of 104 in 15870903.

Step 1:
The number 104 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 104

Step 2:
The number 104 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 104

Step 3:
When dividing 158 by 104, we get 1 with a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 104 from 158 and we're left with 54.
Take the next digit (7) from the dividend and append it to 54, then repeat: 547 / 104

Advancing to step 4:
104 goes into 547 5 times with a remainder of 27.
The next digit of our result is 5. 
Result so far: 15.0
If we take 520 away from 547, we end up with 27.
Take the next digit (0) from the dividend and append it to 27, then repeat: 270 / 104

Advancing to step 5:
104 goes into 270 2 times with a remainder of 62.
Put 2 as the next digit of the answer. 
Result so far: 152.0
Deduct 208 from 270 and we're left with 62.
Take the next digit (9) from the dividend and append it to 62, then repeat: 629 / 104

Moving on to step 6:
104 can be fit into 629 6 times, resulting in a remainder of 5.
Put 6 as the next digit of the answer. 
Result so far: 1526.0
The remainder is 5 after subtracting 624 from 629.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 104

Step 7:
50 divided by 104 is 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 15260.0
Subtract 0 from 50 to get 50.
Include the next digit (3) from the dividend after 50, then repeat: 503 / 104

Advancing to step 8:
104 goes into 503 4 times with a remainder of 87.
Use 4 as the next digit of our solution. 
Result so far: 152604.0
Deduct 416 from 503 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Let's proceed to step 9:
When dividing 870 by 104, we get 8 with a remainder of 38.
The number 8 becomes the next digit in our result. 
Result so far: 152604.8
If we take 832 away from 870, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
104 can be fit into 380 3 times, resulting in a remainder of 68.
The next digit of our result is 3. 
Result so far: 152604.83
The remainder is 68 after subtracting 312 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 11:
104 can be fit into 680 6 times, resulting in a remainder of 56.
Use 6 as the next digit of our solution. 
Result so far: 152604.836
Subtract 624 from 680 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 12:
104 can be fit into 560 5 times, resulting in a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 152604.8365
The remainder is 40 after subtracting 520 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 13:
The number 104 fits into 400 3 times, leaving a remainder of 88.
Put 3 as the next digit of the answer. 
Result so far: 152604.83653
Subtracting 312 from 400 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 14:
104 can be fit into 880 8 times, resulting in a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 152604.836538
The remainder is 48 after subtracting 832 from 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 15:
If we divide 480 by 104, we get 4 and a remainder of 64.
Use 4 as the next digit of our solution. 
Result so far: 152604.8365384
Deduct 416 from 480 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 16:
The number 104 fits into 640 6 times, leaving a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 152604.83653846
If we subtract 624 from 640, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 152604.83653846 with a balance of 1.6e-08.