We look at the division of 145121 by 29 
We want to divide 145121 by 29.

Going ahead to step 1:
If we divide 1 by 29, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 29

Step 2:
29 goes into 14 0 times with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 14 after subtracting 0 from 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 29

Advancing to step 3:
29 goes into 145 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 145 from 145, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 29

Moving on to step 4:
The number 29 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 50.0
If we take 0 away from 1, we end up with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 29

Advancing to step 5:
If we divide 12 by 29, we get 0 and a remainder of 12.
The next digit of our result is 0. 
Result so far: 500.0
Deduct 0 from 12 and we're left with 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 29

Advancing to step 6:
29 can be fit into 121 4 times, resulting in a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 5004.0
Subtracting 116 from 121 leaves us with 5.
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 7:
50 divided by 29 is 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 5004.1
Subtract 29 from 50 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 8:
If we divide 210 by 29, we get 7 and a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 5004.17
Deduct 203 from 210 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 9:
70 divided by 29 is 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 5004.172
If we take 58 away from 70, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
29 goes into 120 4 times with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 5004.1724
If we subtract 116 from 120, we 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.

Advancing to step 11:
29 goes into 40 1 times with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 5004.17241
The remainder is 11 after subtracting 29 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 12:
29 goes into 110 3 times with a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 5004.172413
If we take 87 away from 110, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 13:
The number 29 fits into 230 7 times, leaving a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 5004.1724137
If we subtract 203 from 230, we get 27.
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 14:
29 goes into 270 9 times with a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 5004.17241379
Subtract 261 from 270 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

After the division, we end up with 5004.17241379 and a remainder of 9e-09.