We're dividing 97908609 by 66 
We want to divide 97908609 by 66.

Step 1:
66 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 66

Let's proceed to step 2:
66 goes into 97 1 times with a remainder of 31.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 66 from 97 to get 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 66

Advancing to step 3:
When dividing 319 by 66, we get 4 with a remainder of 55.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we subtract 264 from 319, we get 55.
Grab the next digit (0) from the dividend, add it to 55, then carry on: 550 / 66

Step 4:
If we divide 550 by 66, we get 8 and a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 148.0
The remainder is 22 after subtracting 528 from 550.
Bring next digit (8) of the dividend behind the 22 and repeat the process: 228 / 66

Step 5:
The number 66 fits into 228 3 times, leaving a remainder of 30.
The number 3 becomes the next digit in our result. 
Result so far: 1483.0
Deduct 198 from 228 and we're left with 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 66

On to step 6:
When dividing 306 by 66, we get 4 with a remainder of 42.
The number 4 becomes the next digit in our result. 
Result so far: 14834.0
If we subtract 264 from 306, we get 42.
Bring next digit (0) of the dividend behind the 42 and repeat the process: 420 / 66

Let's proceed to step 7:
The number 66 fits into 420 6 times, leaving a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 148346.0
Subtract 396 from 420 to get 24.
Append the next digit (9) from the dividend to 24 and continue with: 249 / 66

Let's proceed to step 8:
249 divided by 66 is 3 with a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 1483463.0
Subtract 198 from 249 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 9:
66 can be fit into 510 7 times, resulting in a remainder of 48.
Put 7 as the next digit of the answer. 
Result so far: 1483463.7
If we subtract 462 from 510, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 10:
66 can be fit into 480 7 times, resulting in a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 1483463.77
Subtract 462 from 480 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 1483463.77 with a remaining 0.018.