Let's divide 251358 by 19
The aim is to understand the frequency of 19 in 251358.

On to step 1:
When dividing 2 by 19, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 19

Moving on to step 2:
25 divided by 19 is 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 6 after subtracting 19 from 25.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 19

On to step 3:
61 divided by 19 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 57 from 61 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 19

Let's proceed to step 4:
19 goes into 43 2 times with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 132.0
If we take 38 away from 43, we end up with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 19

On to step 5:
If we divide 55 by 19, we get 2 and a remainder of 17.
The next digit of our result is 2. 
Result so far: 1322.0
If we subtract 38 from 55, we get 17.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 19

On to step 6:
19 can be fit into 178 9 times, resulting in a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 13229.0
Deduct 171 from 178 and we're left 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.

Going ahead to 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: 13229.3
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.

Going ahead to step 8:
When dividing 130 by 19, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 13229.36
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.

Advancing to step 9:
19 goes into 160 8 times with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 13229.368
Deduct 152 from 160 and we're left 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.

Advancing to step 10:
The number 19 fits into 80 4 times, leaving a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 13229.3684
If we take 76 away from 80, we end up 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.

Step 11:
19 goes into 40 2 times with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 13229.36842
If we subtract 38 from 40, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 12:
20 divided by 19 is 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 13229.368421
The remainder is 1 after subtracting 19 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 13:
19 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 13229.368421
If we take 0 away from 10, we end up 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.

Step 14:
19 goes into 100 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 13229.36842105
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 13229.36842105 and a remainder of 5e-09.