We look at the division of 290791 by 23 
We want to figure out the number of times 290791 can be divided by 23.

On to step 1:
If we divide 2 by 23, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 23

On to step 2:
23 goes into 29 1 times with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 23 from 29 to get 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 23

Moving on to step 3:
If we divide 60 by 23, we get 2 and a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 46 from 60 to get 14.
Bring next digit (7) of the dividend behind the 14 and repeat the process: 147 / 23

Moving on to step 4:
23 can be fit into 147 6 times, resulting in a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 126.0
The remainder is 9 after subtracting 138 from 147.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 23

Going ahead to step 5:
When dividing 99 by 23, we get 4 with a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 1264.0
The remainder is 7 after subtracting 92 from 99.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 23

Moving on to step 6:
When dividing 71 by 23, we get 3 with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 12643.0
The remainder is 2 after subtracting 69 from 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
If we divide 20 by 23, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 12643.0
The remainder is 20 after subtracting 0 from 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 8:
200 divided by 23 is 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 12643.08
If we subtract 184 from 200, we 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.

Advancing to step 9:
23 goes into 160 6 times with a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 12643.086
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.

Going ahead to step 10:
23 goes into 220 9 times with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 12643.0869
Deduct 207 from 220 and we're left 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:
23 can be fit into 130 5 times, resulting in a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 12643.08695
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.

Let's proceed to step 12:
When dividing 150 by 23, we get 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 12643.086956
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.

On to step 13:
23 can be fit into 120 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 12643.0869565
Subtracting 115 from 120 leaves us 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.

Going ahead to step 14:
When dividing 50 by 23, we get 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 12643.08695652
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.

The final outcome is 12643.08695652, with a leftover of 4e-09.