Let's divide 903979 by 19
The aim is to understand the frequency of 19 in 903979.

Advancing to step 1:
19 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 19

Moving on to step 2:
19 can be fit into 90 4 times, resulting in a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 14 after subtracting 76 from 90.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 19

Let's proceed to step 3:
143 divided by 19 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
The remainder is 10 after subtracting 133 from 143.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 19

On to step 4:
19 can be fit into 109 5 times, resulting in a remainder of 14.
Put 5 as the next digit of the answer. 
Result so far: 475.0
The remainder is 14 after subtracting 95 from 109.
Append the next digit (7) from the dividend to 14 and continue with: 147 / 19

Step 5:
19 can be fit into 147 7 times, resulting in a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 4757.0
If we take 133 away from 147, we end up with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 19

Step 6:
19 goes into 149 7 times with a remainder of 16.
Use 7 as the next digit of our solution. 
Result so far: 47577.0
Subtracting 133 from 149 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
19 can be fit into 160 8 times, resulting in a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 47577.8
The remainder is 8 after subtracting 152 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
When dividing 80 by 19, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 47577.84
Deduct 76 from 80 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
40 divided by 19 is 2 with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 47577.842
Subtract 38 from 40 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
If we divide 20 by 19, we get 1 and a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 47577.8421
Subtract 19 from 20 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 11:
When dividing 10 by 19, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 47577.8421
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
19 can be fit into 100 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 47577.842105
The remainder is 5 after subtracting 95 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 13:
The number 19 fits into 50 2 times, leaving a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 47577.8421052
Subtracting 38 from 50 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 14:
The number 19 fits into 120 6 times, leaving a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 47577.84210526
If we take 114 away from 120, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 47577.84210526 with a remainder of 6e-09.