138487 ÷ 19 
The aim is to understand the frequency of 19 in 138487.

On to step 1:
When dividing 1 by 19, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 19

On to step 2:
19 goes into 13 0 times with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Bring next digit (8) of the dividend behind the 13 and repeat the process: 138 / 19

Advancing to step 3:
19 can be fit into 138 7 times, resulting in a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 133 from 138 to get 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 19

Going ahead to step 4:
If we divide 54 by 19, we get 2 and a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
Deduct 38 from 54 and we're left with 16.
Fetch the next digit (8) from the dividend, attach it to 16 and continue: 168 / 19

Moving on to step 5:
When dividing 168 by 19, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 728.0
Subtracting 152 from 168 leaves us with 16.
Append the next digit (7) from the dividend to 16 and continue with: 167 / 19

Let's proceed to step 6:
If we divide 167 by 19, we get 8 and a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 7288.0
Subtract 152 from 167 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
When dividing 150 by 19, we get 7 with a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 7288.7
Subtract 133 from 150 to 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.

Moving on to step 8:
19 can be fit into 170 8 times, resulting in a remainder of 18.
The next digit of our result is 8. 
Result so far: 7288.78
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 9:
19 can be fit into 180 9 times, resulting in a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 7288.789
Deduct 171 from 180 and we're left 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.

Advancing to step 10:
When dividing 90 by 19, we get 4 with a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 7288.7894
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.

Going ahead to step 11:
If we divide 140 by 19, we get 7 and a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 7288.78947
The remainder is 7 after subtracting 133 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 12:
When dividing 70 by 19, we get 3 with a remainder of 13.
The next digit of our result is 3. 
Result so far: 7288.789473
Subtracting 57 from 70 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 13:
130 divided by 19 is 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 7288.7894736
Subtracting 114 from 130 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.

Moving on to step 14:
19 goes into 160 8 times with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 7288.78947368
Subtracting 152 from 160 leaves us 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.

In conclusion, the division gives 7288.78947368 with a balance of 8e-09.