30013257 ÷ 660 
Our goal is to divide 30013257 by 660.

Step 1:
660 can be fit into 3 0 times, resulting in 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.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 660

Let's proceed to step 2:
660 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Grab the next digit (0) from the dividend, add it to 30, then carry on: 300 / 660

Step 3:
300 divided by 660 is 0 with a remainder of 300.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 300 leaves us with 300.
Take the next digit (1) from the dividend and append it to 300, then repeat: 3001 / 660

Going ahead to step 4:
3001 divided by 660 is 4 with a remainder of 361.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 2640 from 3001 and we're left with 361.
Bring next digit (3) of the dividend behind the 361 and repeat the process: 3613 / 660

Advancing to step 5:
660 can be fit into 3613 5 times, resulting in a remainder of 313.
The next digit of our result is 5. 
Result so far: 45.0
If we subtract 3300 from 3613, we get 313.
Include the next digit (2) from the dividend after 313, then repeat: 3132 / 660

On to step 6:
The number 660 fits into 3132 4 times, leaving a remainder of 492.
The number 4 becomes the next digit in our result. 
Result so far: 454.0
Deduct 2640 from 3132 and we're left with 492.
Grab the next digit (5) from the dividend, add it to 492, then carry on: 4925 / 660

Moving on to step 7:
If we divide 4925 by 660, we get 7 and a remainder of 305.
Record the quotient 7 as the next digit in the result. 
Result so far: 4547.0
If we take 4620 away from 4925, we end up with 305.
Take the next digit (7) from the dividend and append it to 305, then repeat: 3057 / 660

Moving on to step 8:
660 can be fit into 3057 4 times, resulting in a remainder of 417.
The number 4 becomes the next digit in our result. 
Result so far: 45474.0
Deduct 2640 from 3057 and we're left with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Advancing to step 9:
The number 660 fits into 4170 6 times, leaving a remainder of 210.
Record the quotient 6 as the next digit in the result. 
Result so far: 45474.6
If we take 3960 away from 4170, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 10:
The number 660 fits into 2100 3 times, leaving a remainder of 120.
Record the quotient 3 as the next digit in the result. 
Result so far: 45474.63
Subtracting 1980 from 2100 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 11:
If we divide 1200 by 660, we get 1 and a remainder of 540.
Put 1 as the next digit of the answer. 
Result so far: 45474.631
If we take 660 away from 1200, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 12:
When dividing 5400 by 660, we get 8 with a remainder of 120.
Use 8 as the next digit of our solution. 
Result so far: 45474.6318
If we subtract 5280 from 5400, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 13:
If we divide 1200 by 660, we get 1 and a remainder of 540.
The number 1 becomes the next digit in our result. 
Result so far: 45474.63181
If we take 660 away from 1200, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

On to step 14:
The number 660 fits into 5400 8 times, leaving a remainder of 120.
The next digit of our result is 8. 
Result so far: 45474.631818
If we take 5280 away from 5400, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 15:
If we divide 1200 by 660, we get 1 and a remainder of 540.
Write down 1 as next digit of the result. 
Result so far: 45474.6318181
If we subtract 660 from 1200, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 16:
660 goes into 5400 8 times with a remainder of 120.
Write down 8 as next digit of the result. 
Result so far: 45474.63181818
The remainder is 120 after subtracting 5280 from 5400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

In conclusion, the division gives 45474.63181818 with a balance of 1.2e-07.