We look at the division of 166215 by 29 
We want to figure out the number of times 166215 can be divided by 29.

Step 1:
The number 29 fits into 1 0 times, leaving 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 (6) from the dividend, add it to 1, then carry on: 16 / 29

Going ahead to step 2:
29 goes into 16 0 times with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Append the next digit (6) from the dividend to 16 and continue with: 166 / 29

On to step 3:
29 can be fit into 166 5 times, resulting in a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 145 from 166 to get 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 29

Moving on to step 4:
The number 29 fits into 212 7 times, leaving a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 57.0
Subtract 203 from 212 to get 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 29

Advancing to step 5:
29 goes into 91 3 times with a remainder of 4.
The next digit of our result is 3. 
Result so far: 573.0
Subtracting 87 from 91 leaves us with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 29

Moving on to step 6:
45 divided by 29 is 1 with a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 5731.0
The remainder is 16 after subtracting 29 from 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
29 can be fit into 160 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 5731.5
If we take 145 away from 160, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 8:
When dividing 150 by 29, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 5731.55
If we take 145 away from 150, we end up 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.

The final result is 5731.55 with a remainder of 0.005.