Let's divide 80159353 by 19
The aim is to understand the frequency of 19 in 80159353.

On to step 1:
If we divide 8 by 19, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 19

Going ahead to step 2:
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: 4.0
The remainder is 4 after subtracting 76 from 80.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 19

Moving on to step 3:
19 can be fit into 41 2 times, resulting in a remainder of 3.
The next digit of our result is 2. 
Result so far: 42.0
If we take 38 away from 41, we end up with 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 19

Moving on to step 4:
If we divide 35 by 19, we get 1 and a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 421.0
The remainder is 16 after subtracting 19 from 35.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 19

Moving on to step 5:
When dividing 169 by 19, we get 8 with a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 4218.0
Subtracting 152 from 169 leaves us with 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 19

Step 6:
If we divide 173 by 19, we get 9 and a remainder of 2.
The next digit of our result is 9. 
Result so far: 42189.0
If we subtract 171 from 173, we get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 19

Let's proceed to step 7:
19 can be fit into 25 1 times, resulting in a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 421891.0
If we subtract 19 from 25, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 19

Going ahead to step 8:
The number 19 fits into 63 3 times, leaving a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 4218913.0
If we take 57 away from 63, 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.

Advancing to step 9:
If we divide 60 by 19, we get 3 and a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 4218913.3
If we subtract 57 from 60, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 10:
When dividing 30 by 19, we get 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 4218913.31
Deduct 19 from 30 and we're left 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.

Advancing to step 11:
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: 4218913.315
If we take 95 away from 110, we end up with 15.
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 12:
150 divided by 19 is 7 with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 4218913.3157
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.

Moving on to step 13:
If we divide 170 by 19, we get 8 and a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 4218913.31578
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.

Step 14:
180 divided by 19 is 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 4218913.315789
If we subtract 171 from 180, we 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 15:
If we divide 90 by 19, we get 4 and a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 4218913.3157894
The remainder is 14 after subtracting 76 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 16:
The number 19 fits into 140 7 times, leaving a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 4218913.31578947
If we take 133 away from 140, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 4218913.31578947, with a leftover of 7e-09.