We're dividing 43121 by 29 
Let's see how many times 29 fits into 43121.

Advancing to step 1:
When dividing 4 by 29, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 29

Advancing to step 2:
29 can be fit into 43 1 times, resulting in a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 29 from 43 leaves us with 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 29

Let's proceed to step 3:
141 divided by 29 is 4 with a remainder of 25.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 116 away from 141, we end up with 25.
Bring next digit (2) of the dividend behind the 25 and repeat the process: 252 / 29

Let's proceed to step 4:
29 goes into 252 8 times with a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 148.0
Deduct 232 from 252 and we're left with 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 29

On to step 5:
29 goes into 201 6 times with a remainder of 27.
Write down 6 as next digit of the result. 
Result so far: 1486.0
The remainder is 27 after subtracting 174 from 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 6:
29 goes into 270 9 times with a remainder of 9.
The next digit of our result is 9. 
Result so far: 1486.9
The remainder is 9 after subtracting 261 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
If we divide 90 by 29, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 1486.93
Subtracting 87 from 90 leaves us with 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 8:
29 can be fit into 30 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1486.931
If we subtract 29 from 30, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
When dividing 10 by 29, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 1486.931
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
If we divide 100 by 29, we get 3 and a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 1486.93103
Subtract 87 from 100 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 11:
The number 29 fits into 130 4 times, leaving a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 1486.931034
Deduct 116 from 130 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 12:
29 can be fit into 140 4 times, resulting in a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 1486.9310344
Subtract 116 from 140 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 1486.9310344, with a leftover of 2.4e-07.