We look at the division of 66028629 by 210 
We want to figure out the number of times 66028629 can be divided by 210.

On to step 1:
The number 210 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 210

Step 2:
If we divide 66 by 210, we get 0 and a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Grab the next digit (0) from the dividend, add it to 66, then carry on: 660 / 210

Moving on to step 3:
When dividing 660 by 210, we get 3 with a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 630 from 660 and we're left with 30.
Take the next digit (2) from the dividend and append it to 30, then repeat: 302 / 210

Moving on to step 4:
If we divide 302 by 210, we get 1 and a remainder of 92.
Put 1 as the next digit of the answer. 
Result so far: 31.0
If we take 210 away from 302, we end up with 92.
Grab the next digit (8) from the dividend, add it to 92, then carry on: 928 / 210

On to step 5:
The number 210 fits into 928 4 times, leaving a remainder of 88.
Put 4 as the next digit of the answer. 
Result so far: 314.0
The remainder is 88 after subtracting 840 from 928.
Fetch the next digit (6) from the dividend, attach it to 88 and continue: 886 / 210

On to step 6:
886 divided by 210 is 4 with a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 3144.0
Deduct 840 from 886 and we're left with 46.
Append the next digit (2) from the dividend to 46 and continue with: 462 / 210

Going ahead to step 7:
When dividing 462 by 210, we get 2 with a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 31442.0
If we subtract 420 from 462, we get 42.
Take the next digit (9) from the dividend and append it to 42, then repeat: 429 / 210

Let's proceed to step 8:
The number 210 fits into 429 2 times, leaving a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 314422.0
If we subtract 420 from 429, we 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.

Going ahead to step 9:
90 divided by 210 is 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 314422.0
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 10:
900 divided by 210 is 4 with a remainder of 60.
Write down 4 as next digit of the result. 
Result so far: 314422.04
If we take 840 away from 900, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
When dividing 600 by 210, we get 2 with a remainder of 180.
Record the quotient 2 as the next digit in the result. 
Result so far: 314422.042
If we subtract 420 from 600, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 12:
The number 210 fits into 1800 8 times, leaving a remainder of 120.
The number 8 becomes the next digit in our result. 
Result so far: 314422.0428
Deduct 1680 from 1800 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 13:
When dividing 1200 by 210, we get 5 with a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 314422.04285
Subtracting 1050 from 1200 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 14:
210 can be fit into 1500 7 times, resulting in a remainder of 30.
Record the quotient 7 as the next digit in the result. 
Result so far: 314422.042857
If we take 1470 away from 1500, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 15:
When dividing 300 by 210, we get 1 with a remainder of 90.
Record the quotient 1 as the next digit in the result. 
Result so far: 314422.0428571
Subtract 210 from 300 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 16:
900 divided by 210 is 4 with a remainder of 60.
The number 4 becomes the next digit in our result. 
Result so far: 314422.04285714
Subtracting 840 from 900 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 314422.04285714 with a remainder of 6e-08.