12029021 ÷ 75 
We're looking to find how many times 75 goes into 12029021.

Step 1:
1 divided by 75 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 75

Let's proceed to step 2:
12 divided by 75 is 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 75

Going ahead to step 3:
120 divided by 75 is 1 with a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 75 away from 120, we end up with 45.
Bring next digit (2) of the dividend behind the 45 and repeat the process: 452 / 75

On to step 4:
When dividing 452 by 75, we get 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 16.0
The remainder is 2 after subtracting 450 from 452.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 75

Let's proceed to step 5:
The number 75 fits into 29 0 times, leaving a remainder of 29.
The number 0 becomes the next digit in our result. 
Result so far: 160.0
Subtract 0 from 29 to get 29.
Include the next digit (0) from the dividend after 29, then repeat: 290 / 75

Advancing to step 6:
When dividing 290 by 75, we get 3 with a remainder of 65.
The number 3 becomes the next digit in our result. 
Result so far: 1603.0
If we subtract 225 from 290, we get 65.
Include the next digit (2) from the dividend after 65, then repeat: 652 / 75

Step 7:
The number 75 fits into 652 8 times, leaving a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 16038.0
Subtract 600 from 652 to get 52.
Fetch the next digit (1) from the dividend, attach it to 52 and continue: 521 / 75

Going ahead to step 8:
The number 75 fits into 521 6 times, leaving a remainder of 71.
The next digit of our result is 6. 
Result so far: 160386.0
If we take 450 away from 521, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 9:
75 can be fit into 710 9 times, resulting in a remainder of 35.
Write down 9 as next digit of the result. 
Result so far: 160386.9
If we take 675 away from 710, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 10:
If we divide 350 by 75, we get 4 and a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 160386.94
The remainder is 50 after subtracting 300 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 11:
When dividing 500 by 75, we get 6 with a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 160386.946
If we take 450 away from 500, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 12:
500 divided by 75 is 6 with a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 160386.9466
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 160386.9466, with a leftover of 0.0005.