189390 divided by 19 
The aim is to understand the frequency of 19 in 189390.

Let's proceed to step 1:
If we divide 1 by 19, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 19

Let's proceed to step 2:
If we divide 18 by 19, we get 0 and a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 19

Step 3:
19 can be fit into 189 9 times, resulting in a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 171 from 189 and we're left with 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 19

Advancing to step 4:
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: 99.0
The remainder is 12 after subtracting 171 from 183.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 19

Advancing to step 5:
If we divide 129 by 19, we get 6 and a remainder of 15.
The number 6 becomes the next digit in our result. 
Result so far: 996.0
Subtracting 114 from 129 leaves us with 15.
Grab the next digit (0) from the dividend, add it to 15, then carry on: 150 / 19

Advancing to step 6:
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: 9967.0
The remainder is 17 after subtracting 133 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
The number 19 fits into 170 8 times, leaving a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 9967.8
Subtracting 152 from 170 leaves us 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 8:
19 goes into 180 9 times with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 9967.89
If we take 171 away from 180, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
When dividing 90 by 19, we get 4 with a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 9967.894
Subtract 76 from 90 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 10:
If we divide 140 by 19, we get 7 and a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 9967.8947
Subtract 133 from 140 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 11:
When dividing 70 by 19, we get 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 9967.89473
The remainder is 13 after subtracting 57 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 12:
The number 19 fits into 130 6 times, leaving a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 9967.894736
If we subtract 114 from 130, 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.

Going ahead to step 13:
160 divided by 19 is 8 with a remainder of 8.
The next digit of our result is 8. 
Result so far: 9967.8947368
If we take 152 away from 160, we end up with 8.
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 14:
The number 19 fits into 80 4 times, leaving a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 9967.89473684
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.

Our division results in 9967.89473684 with a remaining 4e-09.