We look at the division of 30660728 by 390 
We want to figure out the number of times 30660728 can be divided by 390.

On to step 1:
390 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 390

Step 2:
30 divided by 390 is 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 390

Let's proceed to step 3:
If we divide 306 by 390, we get 0 and a remainder of 306.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 306 leaves us with 306.
Take the next digit (6) from the dividend and append it to 306, then repeat: 3066 / 390

Moving on to step 4:
The number 390 fits into 3066 7 times, leaving a remainder of 336.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 2730 from 3066, we get 336.
Bring next digit (0) of the dividend behind the 336 and repeat the process: 3360 / 390

Going ahead to step 5:
The number 390 fits into 3360 8 times, leaving a remainder of 240.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtract 3120 from 3360 to get 240.
Take the next digit (7) from the dividend and append it to 240, then repeat: 2407 / 390

Moving on to step 6:
390 goes into 2407 6 times with a remainder of 67.
The next digit of our result is 6. 
Result so far: 786.0
The remainder is 67 after subtracting 2340 from 2407.
Fetch the next digit (2) from the dividend, attach it to 67 and continue: 672 / 390

On to step 7:
390 goes into 672 1 times with a remainder of 282.
Use 1 as the next digit of our solution. 
Result so far: 7861.0
The remainder is 282 after subtracting 390 from 672.
Grab the next digit (8) from the dividend, add it to 282, then carry on: 2828 / 390

On to step 8:
390 goes into 2828 7 times with a remainder of 98.
The number 7 becomes the next digit in our result. 
Result so far: 78617.0
If we take 2730 away from 2828, we end up with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 9:
390 goes into 980 2 times with a remainder of 200.
The next digit of our result is 2. 
Result so far: 78617.2
If we take 780 away from 980, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 10:
If we divide 2000 by 390, we get 5 and a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 78617.25
If we subtract 1950 from 2000, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
500 divided by 390 is 1 with a remainder of 110.
Use 1 as the next digit of our solution. 
Result so far: 78617.251
Subtracting 390 from 500 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 12:
When dividing 1100 by 390, we get 2 with a remainder of 320.
Record the quotient 2 as the next digit in the result. 
Result so far: 78617.2512
If we subtract 780 from 1100, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 13:
When dividing 3200 by 390, we get 8 with a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 78617.25128
Subtracting 3120 from 3200 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 14:
The number 390 fits into 800 2 times, leaving a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 78617.251282
Subtract 780 from 800 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 15:
The number 390 fits into 200 0 times, leaving a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 78617.251282
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 16:
2000 divided by 390 is 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 78617.25128205
If we subtract 1950 from 2000, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 78617.25128205 and a remainder of 5e-08.