65940611 ÷ 15 
Our goal is to divide 65940611 by 15.

On to step 1:
When dividing 6 by 15, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 15

Advancing to step 2:
The number 15 fits into 65 4 times, leaving a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 60 from 65 leaves us with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 15

On to step 3:
When dividing 59 by 15, we get 3 with a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 43.0
If we subtract 45 from 59, we get 14.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 15

Step 4:
When dividing 144 by 15, we get 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 439.0
If we subtract 135 from 144, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 15

Advancing to step 5:
When dividing 90 by 15, we get 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 4396.0
Subtracting 90 from 90 leaves us with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 15

On to step 6:
If we divide 6 by 15, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 43960.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 15

Advancing to step 7:
15 can be fit into 61 4 times, resulting in a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 439604.0
The remainder is 1 after subtracting 60 from 61.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 15

Going ahead to step 8:
15 goes into 11 0 times with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 4396040.0
Deduct 0 from 11 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 9:
15 goes into 110 7 times with a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 4396040.7
Subtracting 105 from 110 leaves us 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.

Advancing to step 10:
15 can be fit into 50 3 times, resulting in a remainder of 5.
The next digit of our result is 3. 
Result so far: 4396040.73
If we take 45 away from 50, 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.

On to step 11:
15 can be fit into 50 3 times, resulting in a remainder of 5.
The next digit of our result is 3. 
Result so far: 4396040.733
Subtract 45 from 50 to get 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 4396040.733 with a remainder of 0.0005.