We're dividing 303800 by 23 
The aim is to understand the frequency of 23 in 303800.

Advancing to step 1:
If we divide 3 by 23, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 23

Advancing to step 2:
The number 23 fits into 30 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 23 from 30, we get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 23

On to step 3:
23 goes into 73 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 69 from 73 to get 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 23

Moving on to step 4:
When dividing 48 by 23, we get 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 132.0
The remainder is 2 after subtracting 46 from 48.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 23

Going ahead to step 5:
If we divide 20 by 23, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 1320.0
If we subtract 0 from 20, we get 20.
Append the next digit (0) from the dividend to 20 and continue with: 200 / 23

Let's proceed to step 6:
If we divide 200 by 23, we get 8 and a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 13208.0
The remainder is 16 after subtracting 184 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
23 can be fit into 160 6 times, resulting in a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 13208.6
If we subtract 138 from 160, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
23 goes into 220 9 times with a remainder of 13.
The next digit of our result is 9. 
Result so far: 13208.69
Subtract 207 from 220 to 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.

Let's proceed to step 9:
If we divide 130 by 23, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 13208.695
The remainder is 15 after subtracting 115 from 130.
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 10:
150 divided by 23 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 13208.6956
If we take 138 away from 150, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 11:
If we divide 120 by 23, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 13208.69565
Deduct 115 from 120 and we're left 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.

On to step 12:
23 can be fit into 50 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 13208.695652
Subtract 46 from 50 to 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.

Let's proceed to step 13:
40 divided by 23 is 1 with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 13208.6956521
Subtract 23 from 40 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.

Going ahead to step 14:
23 goes into 170 7 times with a remainder of 9.
The next digit of our result is 7. 
Result so far: 13208.69565217
Subtract 161 from 170 to 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.

After the division, we end up with 13208.69565217 and a remainder of 9e-09.