475221 divided by 19 
The aim is to understand the frequency of 19 in 475221.

On to step 1:
The number 19 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 19

Advancing to step 2:
19 goes into 47 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 38 from 47 leaves us with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 19

Step 3:
19 goes into 95 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 25.0
If we take 95 away from 95, we end up with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 19

On to step 4:
19 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 250.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 19

Going ahead to step 5:
When dividing 22 by 19, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 2501.0
Subtracting 19 from 22 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 19

Step 6:
If we divide 31 by 19, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 25011.0
If we take 19 away from 31, we end up 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.

Step 7:
The number 19 fits into 120 6 times, leaving a remainder of 6.
The next digit of our result is 6. 
Result so far: 25011.6
The remainder is 6 after subtracting 114 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
The number 19 fits into 60 3 times, leaving a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 25011.63
If we take 57 away from 60, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 9:
The number 19 fits into 30 1 times, leaving a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 25011.631
If we take 19 away from 30, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 10:
19 can be fit into 110 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 25011.6315
The remainder is 15 after subtracting 95 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 11:
150 divided by 19 is 7 with a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 25011.63157
Deduct 133 from 150 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 12:
When dividing 170 by 19, we get 8 with a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 25011.631578
Deduct 152 from 170 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 13:
When dividing 180 by 19, we get 9 with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 25011.6315789
Subtract 171 from 180 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 14:
19 goes into 90 4 times with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 25011.63157894
If we take 76 away from 90, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 25011.63157894 with a remainder of 1.4e-08.