373588 ÷ 19 
The aim is to understand the frequency of 19 in 373588.

Let's proceed to step 1:
19 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 19

Let's proceed to step 2:
The number 19 fits into 37 1 times, leaving a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 19 from 37 and we're left with 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 19

Moving on to step 3:
When dividing 183 by 19, we get 9 with a remainder of 12.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtracting 171 from 183 leaves us with 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 19

Step 4:
The number 19 fits into 125 6 times, leaving a remainder of 11.
The next digit of our result is 6. 
Result so far: 196.0
Subtract 114 from 125 to get 11.
Bring next digit (8) of the dividend behind the 11 and repeat the process: 118 / 19

Step 5:
If we divide 118 by 19, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 1966.0
Deduct 114 from 118 and we're left with 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 19

Step 6:
48 divided by 19 is 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 19662.0
Subtract 38 from 48 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
19 can be fit into 100 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 19662.5
Subtract 95 from 100 to get 5.
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 8:
19 goes into 50 2 times with a remainder of 12.
The next digit of our result is 2. 
Result so far: 19662.52
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 9:
19 can be fit into 120 6 times, resulting in a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 19662.526
Deduct 114 from 120 and we're left 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.

Moving on to step 10:
19 goes into 60 3 times with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 19662.5263
The remainder is 3 after subtracting 57 from 60.
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 11:
The number 19 fits into 30 1 times, leaving a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 19662.52631
If we subtract 19 from 30, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 12:
If we divide 110 by 19, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 19662.526315
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.

Let's proceed to step 13:
If we divide 150 by 19, we get 7 and a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 19662.5263157
If we subtract 133 from 150, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 14:
If we divide 170 by 19, we get 8 and a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 19662.52631578
Subtract 152 from 170 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 19662.52631578 and a remainder of 1.8e-08.