We look at the division of 990254 by 23 
We're looking to find how many times 23 goes into 990254.

Let's proceed to step 1:
If we divide 9 by 23, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 23

Moving on to step 2:
The number 23 fits into 99 4 times, leaving a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 7 after subtracting 92 from 99.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 23

Going ahead to step 3:
The number 23 fits into 70 3 times, leaving a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 43.0
Subtract 69 from 70 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 23

Moving on to step 4:
23 goes into 12 0 times with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 430.0
If we subtract 0 from 12, we get 12.
Append the next digit (5) from the dividend to 12 and continue with: 125 / 23

Moving on to step 5:
The number 23 fits into 125 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 4305.0
The remainder is 10 after subtracting 115 from 125.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 23

Step 6:
104 divided by 23 is 4 with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 43054.0
Subtract 92 from 104 to 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.

Let's proceed to step 7:
23 can be fit into 120 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 43054.5
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.

On to step 8:
When dividing 50 by 23, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 43054.52
Deduct 46 from 50 and we're left 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.

Advancing to step 9:
23 goes into 40 1 times with a remainder of 17.
The next digit of our result is 1. 
Result so far: 43054.521
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.

Moving on to step 10:
23 can be fit into 170 7 times, resulting in a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 43054.5217
Subtracting 161 from 170 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 11:
23 can be fit into 90 3 times, resulting in a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 43054.52173
Subtract 69 from 90 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 12:
The number 23 fits into 210 9 times, leaving a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 43054.521739
Subtract 207 from 210 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 13:
If we divide 30 by 23, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 43054.5217391
The remainder is 7 after subtracting 23 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 14:
The number 23 fits into 70 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 43054.52173913
Subtract 69 from 70 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 43054.52173913 with a remainder of 1e-09.