We're dividing 128215 by 66 
We want to figure out the number of times 128215 can be divided by 66.

Step 1:
If we divide 1 by 66, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 66

Advancing to step 2:
If we divide 12 by 66, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Bring next digit (8) of the dividend behind the 12 and repeat the process: 128 / 66

Going ahead to step 3:
128 divided by 66 is 1 with a remainder of 62.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 66 from 128 leaves us with 62.
Take the next digit (2) from the dividend and append it to 62, then repeat: 622 / 66

Moving on to step 4:
66 can be fit into 622 9 times, resulting in a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 594 from 622, we get 28.
Fetch the next digit (1) from the dividend, attach it to 28 and continue: 281 / 66

Step 5:
If we divide 281 by 66, we get 4 and a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 194.0
Subtract 264 from 281 to get 17.
Include the next digit (5) from the dividend after 17, then repeat: 175 / 66

Let's proceed to step 6:
The number 66 fits into 175 2 times, leaving a remainder of 43.
Use 2 as the next digit of our solution. 
Result so far: 1942.0
Subtract 132 from 175 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 7:
430 divided by 66 is 6 with a remainder of 34.
The next digit of our result is 6. 
Result so far: 1942.6
If we take 396 away from 430, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 8:
The number 66 fits into 340 5 times, leaving a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 1942.65
Subtract 330 from 340 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
100 divided by 66 is 1 with a remainder of 34.
The next digit of our result is 1. 
Result so far: 1942.651
Subtracting 66 from 100 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
When dividing 340 by 66, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 1942.6515
Deduct 330 from 340 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 11:
100 divided by 66 is 1 with a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 1942.65151
If we take 66 away from 100, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 12:
The number 66 fits into 340 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 1942.651515
If we subtract 330 from 340, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 13:
When dividing 100 by 66, we get 1 with a remainder of 34.
Put 1 as the next digit of the answer. 
Result so far: 1942.6515151
If we take 66 away from 100, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 14:
The number 66 fits into 340 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 1942.65151515
If we take 330 away from 340, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 1942.65151515 and a remainder of 1e-08.