43159723 divided by 142 
Let's see how many times 142 fits into 43159723.

On to step 1:
If we divide 4 by 142, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 142

Step 2:
142 goes into 43 0 times with a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Fetch the next digit (1) from the dividend, attach it to 43 and continue: 431 / 142

Advancing to step 3:
431 divided by 142 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 426 from 431, we get 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 142

Moving on to step 4:
The number 142 fits into 55 0 times, leaving a remainder of 55.
Use 0 as the next digit of our solution. 
Result so far: 30.0
If we subtract 0 from 55, we get 55.
Take the next digit (9) from the dividend and append it to 55, then repeat: 559 / 142

Let's proceed to step 5:
142 can be fit into 559 3 times, resulting in a remainder of 133.
Write down 3 as next digit of the result. 
Result so far: 303.0
The remainder is 133 after subtracting 426 from 559.
Take the next digit (7) from the dividend and append it to 133, then repeat: 1337 / 142

Advancing to step 6:
1337 divided by 142 is 9 with a remainder of 59.
Put 9 as the next digit of the answer. 
Result so far: 3039.0
If we take 1278 away from 1337, we end up with 59.
Bring next digit (2) of the dividend behind the 59 and repeat the process: 592 / 142

Step 7:
142 goes into 592 4 times with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 30394.0
If we subtract 568 from 592, we get 24.
Bring next digit (3) of the dividend behind the 24 and repeat the process: 243 / 142

Going ahead to step 8:
142 can be fit into 243 1 times, resulting in a remainder of 101.
Put 1 as the next digit of the answer. 
Result so far: 303941.0
Deduct 142 from 243 and we're left with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Moving on to step 9:
When dividing 1010 by 142, we get 7 with a remainder of 16.
Write down 7 as next digit of the result. 
Result so far: 303941.7
If we take 994 away from 1010, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
160 divided by 142 is 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 303941.71
Deduct 142 from 160 and we're left 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.

Let's proceed to step 11:
180 divided by 142 is 1 with a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 303941.711
If we take 142 away from 180, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final result is 303941.711 with a remainder of 0.0038.