We look at the division of 66606670 by 104 
We want to figure out the number of times 66606670 can be divided by 104.

On to step 1:
6 divided by 104 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 104

On to step 2:
When dividing 66 by 104, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Grab the next digit (6) from the dividend, add it to 66, then carry on: 666 / 104

Advancing to step 3:
When dividing 666 by 104, we get 6 with a remainder of 42.
The next digit of our result is 6. 
Result so far: 6.0
If we take 624 away from 666, we end up with 42.
Include the next digit (0) from the dividend after 42, then repeat: 420 / 104

Advancing to step 4:
104 can be fit into 420 4 times, resulting in a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Deduct 416 from 420 and we're left with 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 104

On to step 5:
When dividing 46 by 104, we get 0 with a remainder of 46.
The number 0 becomes the next digit in our result. 
Result so far: 640.0
If we subtract 0 from 46, we get 46.
Take the next digit (6) from the dividend and append it to 46, then repeat: 466 / 104

On to step 6:
When dividing 466 by 104, we get 4 with a remainder of 50.
Put 4 as the next digit of the answer. 
Result so far: 6404.0
Subtract 416 from 466 to get 50.
Include the next digit (7) from the dividend after 50, then repeat: 507 / 104

On to step 7:
If we divide 507 by 104, we get 4 and a remainder of 91.
Record the quotient 4 as the next digit in the result. 
Result so far: 64044.0
Deduct 416 from 507 and we're left with 91.
Append the next digit (0) from the dividend to 91 and continue with: 910 / 104

Let's proceed to step 8:
104 can be fit into 910 8 times, resulting in a remainder of 78.
Use 8 as the next digit of our solution. 
Result so far: 640448.0
Subtracting 832 from 910 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 9:
When dividing 780 by 104, we get 7 with a remainder of 52.
The number 7 becomes the next digit in our result. 
Result so far: 640448.7
Subtracting 728 from 780 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 10:
520 divided by 104 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 640448.75
Subtract 520 from 520 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
104 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 640448.75
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
If we divide 0 by 104, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 640448.75
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 640448.75 with a remainder of 0.0.