Let's divide 353719 by 23
The aim is to understand the frequency of 23 in 353719.

Going ahead to step 1:
The number 23 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 23

On to step 2:
35 divided by 23 is 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 12 after subtracting 23 from 35.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 23

On to step 3:
23 can be fit into 123 5 times, resulting in a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we subtract 115 from 123, we get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 23

Moving on to step 4:
When dividing 87 by 23, we get 3 with a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 153.0
The remainder is 18 after subtracting 69 from 87.
Append the next digit (1) from the dividend to 18 and continue with: 181 / 23

Advancing to step 5:
When dividing 181 by 23, we get 7 with a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 1537.0
If we take 161 away from 181, we end up with 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 23

Advancing to step 6:
If we divide 209 by 23, we get 9 and a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 15379.0
If we subtract 207 from 209, 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.

On to step 7:
20 divided by 23 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 15379.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
23 goes into 200 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 15379.08
Subtracting 184 from 200 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.

Let's proceed to step 9:
23 goes into 160 6 times with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 15379.086
If we take 138 away from 160, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 10:
When dividing 220 by 23, we get 9 with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 15379.0869
Subtracting 207 from 220 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.

On to step 11:
The number 23 fits into 130 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 15379.08695
If we subtract 115 from 130, we 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.

Going ahead to step 12:
If we divide 150 by 23, we get 6 and a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 15379.086956
If we subtract 138 from 150, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 13:
120 divided by 23 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 15379.0869565
If we take 115 away from 120, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 14:
If we divide 50 by 23, we get 2 and a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 15379.08695652
If we take 46 away from 50, 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.

Our division results in 15379.08695652 with a remaining 4e-09.