Let's divide 20789430 by 660
Our goal is to divide 20789430 by 660.

Moving on to step 1:
660 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 660

Let's proceed to step 2:
When dividing 20 by 660, we get 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Append the next digit (7) from the dividend to 20 and continue with: 207 / 660

Moving on to step 3:
660 can be fit into 207 0 times, resulting in a remainder of 207.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 207 to get 207.
Take the next digit (8) from the dividend and append it to 207, then repeat: 2078 / 660

Advancing to step 4:
The number 660 fits into 2078 3 times, leaving a remainder of 98.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 98 after subtracting 1980 from 2078.
Bring next digit (9) of the dividend behind the 98 and repeat the process: 989 / 660

On to step 5:
When dividing 989 by 660, we get 1 with a remainder of 329.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Subtracting 660 from 989 leaves us with 329.
Take the next digit (4) from the dividend and append it to 329, then repeat: 3294 / 660

Step 6:
If we divide 3294 by 660, we get 4 and a remainder of 654.
The number 4 becomes the next digit in our result. 
Result so far: 314.0
Subtracting 2640 from 3294 leaves us with 654.
Take the next digit (3) from the dividend and append it to 654, then repeat: 6543 / 660

Step 7:
If we divide 6543 by 660, we get 9 and a remainder of 603.
Write down 9 as next digit of the result. 
Result so far: 3149.0
If we take 5940 away from 6543, we end up with 603.
Bring next digit (0) of the dividend behind the 603 and repeat the process: 6030 / 660

On to step 8:
6030 divided by 660 is 9 with a remainder of 90.
Write down 9 as next digit of the result. 
Result so far: 31499.0
If we take 5940 away from 6030, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 9:
660 goes into 900 1 times with a remainder of 240.
Record the quotient 1 as the next digit in the result. 
Result so far: 31499.1
Deduct 660 from 900 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 10:
660 goes into 2400 3 times with a remainder of 420.
Put 3 as the next digit of the answer. 
Result so far: 31499.13
Subtract 1980 from 2400 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 11:
The number 660 fits into 4200 6 times, leaving a remainder of 240.
Use 6 as the next digit of our solution. 
Result so far: 31499.136
Subtract 3960 from 4200 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 12:
2400 divided by 660 is 3 with a remainder of 420.
Use 3 as the next digit of our solution. 
Result so far: 31499.1363
Subtracting 1980 from 2400 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Going ahead to step 13:
When dividing 4200 by 660, we get 6 with a remainder of 240.
Use 6 as the next digit of our solution. 
Result so far: 31499.13636
Subtracting 3960 from 4200 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 14:
2400 divided by 660 is 3 with a remainder of 420.
The next digit of our result is 3. 
Result so far: 31499.136363
The remainder is 420 after subtracting 1980 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 15:
If we divide 4200 by 660, we get 6 and a remainder of 240.
The number 6 becomes the next digit in our result. 
Result so far: 31499.1363636
Subtracting 3960 from 4200 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 16:
If we divide 2400 by 660, we get 3 and a remainder of 420.
Put 3 as the next digit of the answer. 
Result so far: 31499.13636363
If we take 1980 away from 2400, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

The final result is 31499.13636363 with a remainder of 4.2e-07.