We look at the division of 21191850 by 104 
The aim is to understand the frequency of 104 in 21191850.

Let's proceed to step 1:
104 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 104

Let's proceed to step 2:
When dividing 21 by 104, we get 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 104

On to step 3:
When dividing 211 by 104, we get 2 with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 208 from 211 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 104

On to step 4:
104 can be fit into 39 0 times, resulting in a remainder of 39.
The next digit of our result is 0. 
Result so far: 20.0
If we take 0 away from 39, we end up with 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 104

Moving on to step 5:
104 goes into 391 3 times with a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 203.0
Subtract 312 from 391 to get 79.
Bring next digit (8) of the dividend behind the 79 and repeat the process: 798 / 104

Going ahead to step 6:
104 can be fit into 798 7 times, resulting in a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 2037.0
Deduct 728 from 798 and we're left with 70.
Fetch the next digit (5) from the dividend, attach it to 70 and continue: 705 / 104

Let's proceed to step 7:
104 goes into 705 6 times with a remainder of 81.
The next digit of our result is 6. 
Result so far: 20376.0
The remainder is 81 after subtracting 624 from 705.
Bring next digit (0) of the dividend behind the 81 and repeat the process: 810 / 104

Going ahead to step 8:
104 goes into 810 7 times with a remainder of 82.
Record the quotient 7 as the next digit in the result. 
Result so far: 203767.0
If we subtract 728 from 810, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 9:
820 divided by 104 is 7 with a remainder of 92.
Use 7 as the next digit of our solution. 
Result so far: 203767.7
Deduct 728 from 820 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 10:
If we divide 920 by 104, we get 8 and a remainder of 88.
The next digit of our result is 8. 
Result so far: 203767.78
If we take 832 away from 920, we end up 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.

Let's proceed to step 11:
When dividing 880 by 104, we get 8 with a remainder of 48.
The next digit of our result is 8. 
Result so far: 203767.788
Subtracting 832 from 880 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Our division results in 203767.788 with a remaining 0.0048.