We're dividing 305641 by 19 
The aim is to understand the frequency of 19 in 305641.

Moving on to step 1:
The number 19 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 19

Advancing to step 2:
19 can be fit into 30 1 times, resulting in a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 19 away from 30, we end up with 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 19

On to step 3:
115 divided by 19 is 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 16.0
The remainder is 1 after subtracting 114 from 115.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 19

Moving on to step 4:
19 can be fit into 16 0 times, resulting in a remainder of 16.
The next digit of our result is 0. 
Result so far: 160.0
If we subtract 0 from 16, we get 16.
Grab the next digit (4) from the dividend, add it to 16, then carry on: 164 / 19

Going ahead to step 5:
If we divide 164 by 19, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 1608.0
If we take 152 away from 164, we end up with 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 19

On to step 6:
The number 19 fits into 121 6 times, leaving a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 16086.0
If we take 114 away from 121, 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.

Step 7:
If we divide 70 by 19, we get 3 and a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 16086.3
If we subtract 57 from 70, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 8:
When dividing 130 by 19, we get 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 16086.36
Deduct 114 from 130 and we're left 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.

Going ahead to step 9:
19 can be fit into 160 8 times, resulting in a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 16086.368
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.

Going ahead to step 10:
19 can be fit into 80 4 times, resulting in a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 16086.3684
If we subtract 76 from 80, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
The number 19 fits into 40 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 16086.36842
Subtracting 38 from 40 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
19 goes into 20 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 16086.368421
If we subtract 19 from 20, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 13:
The number 19 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 16086.368421
Subtracting 0 from 10 leaves us with 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 14:
19 goes into 100 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 16086.36842105
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.

After the division, we end up with 16086.36842105 and a remainder of 5e-09.