We divide 623981 by 23
The aim is to understand the frequency of 23 in 623981.

Moving on to step 1:
6 divided by 23 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 23

Moving on to step 2:
23 goes into 62 2 times with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 16 after subtracting 46 from 62.
Bring next digit (3) of the dividend behind the 16 and repeat the process: 163 / 23

Step 3:
The number 23 fits into 163 7 times, leaving a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Deduct 161 from 163 and we're left with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 23

Step 4:
If we divide 29 by 23, we get 1 and a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 271.0
Subtracting 23 from 29 leaves us with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 23

Step 5:
The number 23 fits into 68 2 times, leaving a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 2712.0
Subtract 46 from 68 to get 22.
Fetch the next digit (1) from the dividend, attach it to 22 and continue: 221 / 23

Let's proceed to step 6:
When dividing 221 by 23, we get 9 with a remainder of 14.
The number 9 becomes the next digit in our result. 
Result so far: 27129.0
Subtracting 207 from 221 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
23 goes into 140 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 27129.6
Subtracting 138 from 140 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.

Step 8:
20 divided by 23 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 27129.6
If we take 0 away from 20, we end up 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.

Step 9:
23 goes into 200 8 times with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 27129.608
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.

Going ahead to step 10:
23 goes into 160 6 times with a remainder of 22.
Put 6 as the next digit of the answer. 
Result so far: 27129.6086
Deduct 138 from 160 and we're left 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.

Let's proceed to step 11:
If we divide 220 by 23, we get 9 and a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 27129.60869
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 12:
If we divide 130 by 23, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 27129.608695
If we take 115 away from 130, 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.

On to step 13:
When dividing 150 by 23, we get 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 27129.6086956
The remainder is 12 after subtracting 138 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 14:
23 can be fit into 120 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 27129.60869565
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.

The final outcome is 27129.60869565, with a leftover of 5e-09.