We look at the division of 159999 by 43 
Our goal is to divide 159999 by 43.

Let's proceed to step 1:
If we divide 1 by 43, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 43

Advancing to step 2:
If we divide 15 by 43, we get 0 and a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 43

Moving on to step 3:
If we divide 159 by 43, we get 3 and a remainder of 30.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 129 from 159 to get 30.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 43

Step 4:
The number 43 fits into 309 7 times, leaving a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 37.0
If we subtract 301 from 309, we get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 43

Let's proceed to step 5:
43 goes into 89 2 times with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 372.0
Deduct 86 from 89 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 43

Going ahead to step 6:
43 can be fit into 39 0 times, resulting in a remainder of 39.
The next digit of our result is 0. 
Result so far: 3720.0
Subtract 0 from 39 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 7:
43 can be fit into 390 9 times, resulting in a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 3720.9
The remainder is 3 after subtracting 387 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 8:
43 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 3720.9
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
The number 43 fits into 300 6 times, leaving a remainder of 42.
Record the quotient 6 as the next digit in the result. 
Result so far: 3720.906
If we take 258 away from 300, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 10:
The number 43 fits into 420 9 times, leaving a remainder of 33.
Record the quotient 9 as the next digit in the result. 
Result so far: 3720.9069
The remainder is 33 after subtracting 387 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 11:
The number 43 fits into 330 7 times, leaving a remainder of 29.
The number 7 becomes the next digit in our result. 
Result so far: 3720.90697
If we take 301 away from 330, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 12:
290 divided by 43 is 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 3720.906976
Deduct 258 from 290 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 13:
If we divide 320 by 43, we get 7 and a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 3720.9069767
Subtract 301 from 320 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.

Advancing to step 14:
43 can be fit into 190 4 times, resulting in a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 3720.90697674
Subtracting 172 from 190 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 3720.90697674, with a leftover of 1.8e-08.