We divide 290429 by 23
The aim is to understand the frequency of 23 in 290429.

On to step 1:
The number 23 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 23

Advancing to step 2:
23 goes into 29 1 times with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 23 from 29 leaves us with 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 23

Advancing to step 3:
23 goes into 60 2 times with a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 46 from 60 leaves us with 14.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 23

Moving on to step 4:
The number 23 fits into 144 6 times, leaving a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 126.0
Subtracting 138 from 144 leaves us with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 23

Advancing to step 5:
When dividing 62 by 23, we get 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 1262.0
Subtract 46 from 62 to get 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 23

Let's proceed to step 6:
When dividing 169 by 23, we get 7 with a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 12627.0
Subtracting 161 from 169 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.

On to step 7:
23 goes into 80 3 times with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 12627.3
If we subtract 69 from 80, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 8:
When dividing 110 by 23, we get 4 with a remainder of 18.
The next digit of our result is 4. 
Result so far: 12627.34
Subtracting 92 from 110 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 9:
When dividing 180 by 23, we get 7 with a remainder of 19.
Record the quotient 7 as the next digit in the result. 
Result so far: 12627.347
If we subtract 161 from 180, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 10:
23 goes into 190 8 times with a remainder of 6.
The next digit of our result is 8. 
Result so far: 12627.3478
The remainder is 6 after subtracting 184 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
23 goes into 60 2 times with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 12627.34782
If we take 46 away from 60, we end up 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.

On to step 12:
If we divide 140 by 23, we get 6 and a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 12627.347826
The remainder is 2 after subtracting 138 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 13:
23 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 12627.347826
Subtracting 0 from 20 leaves us 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.

Moving on to step 14:
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: 12627.34782608
Subtract 184 from 200 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 12627.34782608, with a leftover of 1.6e-08.