39209260 ÷ 660 
Our goal is to divide 39209260 by 660.

Step 1:
3 divided by 660 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 660

Let's proceed to step 2:
When dividing 39 by 660, we get 0 with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Take the next digit (2) from the dividend and append it to 39, then repeat: 392 / 660

Advancing to step 3:
392 divided by 660 is 0 with a remainder of 392.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 392 and we're left with 392.
Take the next digit (0) from the dividend and append it to 392, then repeat: 3920 / 660

Moving on to step 4:
The number 660 fits into 3920 5 times, leaving a remainder of 620.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 3300 from 3920 to get 620.
Grab the next digit (9) from the dividend, add it to 620, then carry on: 6209 / 660

Let's proceed to step 5:
660 goes into 6209 9 times with a remainder of 269.
The number 9 becomes the next digit in our result. 
Result so far: 59.0
The remainder is 269 after subtracting 5940 from 6209.
Take the next digit (2) from the dividend and append it to 269, then repeat: 2692 / 660

Moving on to step 6:
If we divide 2692 by 660, we get 4 and a remainder of 52.
The next digit of our result is 4. 
Result so far: 594.0
If we subtract 2640 from 2692, we get 52.
Append the next digit (6) from the dividend to 52 and continue with: 526 / 660

Step 7:
The number 660 fits into 526 0 times, leaving a remainder of 526.
Record the quotient 0 as the next digit in the result. 
Result so far: 5940.0
Subtracting 0 from 526 leaves us with 526.
Include the next digit (0) from the dividend after 526, then repeat: 5260 / 660

Step 8:
660 goes into 5260 7 times with a remainder of 640.
Use 7 as the next digit of our solution. 
Result so far: 59407.0
If we subtract 4620 from 5260, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

On to step 9:
If we divide 6400 by 660, we get 9 and a remainder of 460.
Record the quotient 9 as the next digit in the result. 
Result so far: 59407.9
Deduct 5940 from 6400 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 10:
660 can be fit into 4600 6 times, resulting in a remainder of 640.
The number 6 becomes the next digit in our result. 
Result so far: 59407.96
Deduct 3960 from 4600 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 11:
When dividing 6400 by 660, we get 9 with a remainder of 460.
Use 9 as the next digit of our solution. 
Result so far: 59407.969
If we take 5940 away from 6400, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Step 12:
660 can be fit into 4600 6 times, resulting in a remainder of 640.
The next digit of our result is 6. 
Result so far: 59407.9696
Subtract 3960 from 4600 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Advancing to step 13:
6400 divided by 660 is 9 with a remainder of 460.
Use 9 as the next digit of our solution. 
Result so far: 59407.96969
The remainder is 460 after subtracting 5940 from 6400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 14:
When dividing 4600 by 660, we get 6 with a remainder of 640.
The next digit of our result is 6. 
Result so far: 59407.969696
Subtracting 3960 from 4600 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Advancing to step 15:
The number 660 fits into 6400 9 times, leaving a remainder of 460.
The next digit of our result is 9. 
Result so far: 59407.9696969
Subtracting 5940 from 6400 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Advancing to step 16:
The number 660 fits into 4600 6 times, leaving a remainder of 640.
Put 6 as the next digit of the answer. 
Result so far: 59407.96969696
Subtracting 3960 from 4600 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

The quotient of the division is 59407.96969696, and the remainder is 6.4e-07.