We look at the division of 23404090 by 159 
Our goal is to divide 23404090 by 159.

Let's proceed to step 1:
When dividing 2 by 159, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 159

Going ahead to step 2:
When dividing 23 by 159, we get 0 with a remainder of 23.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 23 and we're left with 23.
Grab the next digit (4) from the dividend, add it to 23, then carry on: 234 / 159

Moving on to step 3:
When dividing 234 by 159, we get 1 with a remainder of 75.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 75 after subtracting 159 from 234.
Include the next digit (0) from the dividend after 75, then repeat: 750 / 159

On to step 4:
If we divide 750 by 159, we get 4 and a remainder of 114.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 636 from 750 leaves us with 114.
Take the next digit (4) from the dividend and append it to 114, then repeat: 1144 / 159

On to step 5:
The number 159 fits into 1144 7 times, leaving a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 147.0
Deduct 1113 from 1144 and we're left with 31.
Bring next digit (0) of the dividend behind the 31 and repeat the process: 310 / 159

Step 6:
310 divided by 159 is 1 with a remainder of 151.
Write down 1 as next digit of the result. 
Result so far: 1471.0
The remainder is 151 after subtracting 159 from 310.
Fetch the next digit (9) from the dividend, attach it to 151 and continue: 1519 / 159

Moving on to step 7:
The number 159 fits into 1519 9 times, leaving a remainder of 88.
Write down 9 as next digit of the result. 
Result so far: 14719.0
The remainder is 88 after subtracting 1431 from 1519.
Bring next digit (0) of the dividend behind the 88 and repeat the process: 880 / 159

On to step 8:
880 divided by 159 is 5 with a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 147195.0
Deduct 795 from 880 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 9:
The number 159 fits into 850 5 times, leaving a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 147195.5
Subtracting 795 from 850 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 10:
The number 159 fits into 550 3 times, leaving a remainder of 73.
Use 3 as the next digit of our solution. 
Result so far: 147195.53
If we take 477 away from 550, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 11:
The number 159 fits into 730 4 times, leaving a remainder of 94.
Use 4 as the next digit of our solution. 
Result so far: 147195.534
Deduct 636 from 730 and we're left with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 12:
The number 159 fits into 940 5 times, leaving a remainder of 145.
Write down 5 as next digit of the result. 
Result so far: 147195.5345
If we subtract 795 from 940, we get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Moving on to step 13:
When dividing 1450 by 159, we get 9 with a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 147195.53459
Subtract 1431 from 1450 to 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.

On to step 14:
190 divided by 159 is 1 with a remainder of 31.
The next digit of our result is 1. 
Result so far: 147195.534591
If we subtract 159 from 190, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 15:
The number 159 fits into 310 1 times, leaving a remainder of 151.
Put 1 as the next digit of the answer. 
Result so far: 147195.5345911
Subtract 159 from 310 to get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

The final outcome is 147195.5345911, with a leftover of 1.51e-06.