We're dividing 66872151 by 29 
We want to figure out the number of times 66872151 can be divided by 29.

On to step 1:
The number 29 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 29

On to step 2:
The number 29 fits into 66 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 58 from 66 to get 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 29

Step 3:
When dividing 88 by 29, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we take 87 away from 88, we end up with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 29

Moving on to step 4:
29 goes into 17 0 times with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 230.0
The remainder is 17 after subtracting 0 from 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 29

Moving on to step 5:
29 can be fit into 172 5 times, resulting in a remainder of 27.
Record the quotient 5 as the next digit in the result. 
Result so far: 2305.0
Deduct 145 from 172 and we're left with 27.
Fetch the next digit (1) from the dividend, attach it to 27 and continue: 271 / 29

Let's proceed to step 6:
29 can be fit into 271 9 times, resulting in a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 23059.0
Deduct 261 from 271 and we're left with 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 29

Moving on to step 7:
105 divided by 29 is 3 with a remainder of 18.
The next digit of our result is 3. 
Result so far: 230593.0
Deduct 87 from 105 and we're left with 18.
Append the next digit (1) from the dividend to 18 and continue with: 181 / 29

Going ahead to step 8:
The number 29 fits into 181 6 times, leaving a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 2305936.0
If we take 174 away from 181, we end up 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.

Step 9:
29 goes into 70 2 times with a remainder of 12.
The next digit of our result is 2. 
Result so far: 2305936.2
The remainder is 12 after subtracting 58 from 70.
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:
If we divide 120 by 29, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 2305936.24
Subtract 116 from 120 to 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.

Step 11:
If we divide 40 by 29, we get 1 and a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 2305936.241
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.

Advancing to step 12:
110 divided by 29 is 3 with a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 2305936.2413
If we subtract 87 from 110, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 13:
29 can be fit into 230 7 times, resulting in a remainder of 27.
Write down 7 as next digit of the result. 
Result so far: 2305936.24137
Deduct 203 from 230 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 14:
The number 29 fits into 270 9 times, leaving a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 2305936.241379
Deduct 261 from 270 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 15:
When dividing 90 by 29, we get 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 2305936.2413793
Subtract 87 from 90 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 16:
29 goes into 30 1 times with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 2305936.24137931
If we take 29 away from 30, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 2305936.24137931 with a remainder of 1e-09.