We look at the division of 403597 by 23 
Let's see how many times 23 fits into 403597.

Advancing to step 1:
If we divide 4 by 23, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 23

Moving on to step 2:
23 can be fit into 40 1 times, resulting in a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 23 from 40 and we're left with 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 23

Let's proceed to step 3:
When dividing 173 by 23, we get 7 with a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 161 from 173 and we're left with 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 23

Going ahead to step 4:
23 can be fit into 125 5 times, resulting in a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 175.0
Subtract 115 from 125 to get 10.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 23

Step 5:
When dividing 109 by 23, we get 4 with a remainder of 17.
The number 4 becomes the next digit in our result. 
Result so far: 1754.0
The remainder is 17 after subtracting 92 from 109.
Take the next digit (7) from the dividend and append it to 17, then repeat: 177 / 23

Step 6:
177 divided by 23 is 7 with a remainder of 16.
The next digit of our result is 7. 
Result so far: 17547.0
If we subtract 161 from 177, 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.

Let's proceed to step 7:
When dividing 160 by 23, we get 6 with a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 17547.6
If we take 138 away from 160, we end up 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.

On to step 8:
23 goes into 220 9 times with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 17547.69
If we take 207 away from 220, we end up 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.

Going ahead to step 9:
23 goes into 130 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 17547.695
If we subtract 115 from 130, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 10:
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: 17547.6956
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.

Let's proceed to step 11:
When dividing 120 by 23, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 17547.69565
The remainder is 5 after subtracting 115 from 120.
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 12:
The number 23 fits into 50 2 times, leaving a remainder of 4.
The next digit of our result is 2. 
Result so far: 17547.695652
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.

Let's proceed to step 13:
The number 23 fits into 40 1 times, leaving a remainder of 17.
The next digit of our result is 1. 
Result so far: 17547.6956521
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.

On to step 14:
The number 23 fits into 170 7 times, leaving a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 17547.69565217
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.

The final result is 17547.69565217 with a remainder of 9e-09.