We look at the division of 99143191 by 23 
Let's see how many times 23 fits into 99143191.

Step 1:
When dividing 9 by 23, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 23

Going ahead to step 2:
23 can be fit into 99 4 times, resulting in a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 92 from 99 to get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 23

Moving on to step 3:
23 can be fit into 71 3 times, resulting in a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Subtracting 69 from 71 leaves us with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 23

Moving on to step 4:
When dividing 24 by 23, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 431.0
If we take 23 away from 24, we end up with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 23

On to step 5:
23 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 4310.0
If we subtract 0 from 13, we get 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 23

Step 6:
23 can be fit into 131 5 times, resulting in a remainder of 16.
Record the quotient 5 as the next digit in the result. 
Result so far: 43105.0
Deduct 115 from 131 and we're left with 16.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 23

Moving on to step 7:
23 goes into 169 7 times with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 431057.0
Subtracting 161 from 169 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 23

Advancing to step 8:
23 goes into 81 3 times with a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 4310573.0
If we subtract 69 from 81, we 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.

Moving on to step 9:
120 divided by 23 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 4310573.5
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.

Going ahead to step 10:
23 can be fit into 50 2 times, resulting in a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 4310573.52
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 11:
23 goes into 40 1 times with a remainder of 17.
The next digit of our result is 1. 
Result so far: 4310573.521
Deduct 23 from 40 and we're left with 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 12:
The number 23 fits into 170 7 times, leaving a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 4310573.5217
If we take 161 away from 170, we end up 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.

Moving on to step 13:
If we divide 90 by 23, we get 3 and a remainder of 21.
The next digit of our result is 3. 
Result so far: 4310573.52173
Subtracting 69 from 90 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 14:
The number 23 fits into 210 9 times, leaving a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 4310573.521739
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.

Advancing to step 15:
23 goes into 30 1 times with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 4310573.5217391
If we take 23 away from 30, we end up with 7.
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 16:
23 goes into 70 3 times with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 4310573.52173913
The remainder is 1 after subtracting 69 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 4310573.52173913 with a remaining 1e-09.