300989 ÷ 66 
Our goal is to divide 300989 by 66.

Moving on to step 1:
66 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 66

Moving on to step 2:
66 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 66

Advancing to step 3:
66 goes into 300 4 times with a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 36 after subtracting 264 from 300.
Append the next digit (9) from the dividend to 36 and continue with: 369 / 66

Let's proceed to step 4:
The number 66 fits into 369 5 times, leaving a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 45.0
Subtracting 330 from 369 leaves us with 39.
Append the next digit (8) from the dividend to 39 and continue with: 398 / 66

Advancing to step 5:
398 divided by 66 is 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 456.0
Subtract 396 from 398 to get 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 66

Moving on to step 6:
66 can be fit into 29 0 times, resulting in a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 4560.0
Deduct 0 from 29 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
66 goes into 290 4 times with a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 4560.4
If we subtract 264 from 290, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 8:
66 goes into 260 3 times with a remainder of 62.
The next digit of our result is 3. 
Result so far: 4560.43
The remainder is 62 after subtracting 198 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 9:
If we divide 620 by 66, we get 9 and a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 4560.439
If we take 594 away from 620, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
The number 66 fits into 260 3 times, leaving a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 4560.4393
The remainder is 62 after subtracting 198 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 11:
66 goes into 620 9 times with a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 4560.43939
If we take 594 away from 620, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 12:
If we divide 260 by 66, we get 3 and a remainder of 62.
Record the quotient 3 as the next digit in the result. 
Result so far: 4560.439393
Deduct 198 from 260 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 13:
When dividing 620 by 66, we get 9 with a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 4560.4393939
Subtract 594 from 620 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 14:
The number 66 fits into 260 3 times, leaving a remainder of 62.
Use 3 as the next digit of our solution. 
Result so far: 4560.43939393
If we subtract 198 from 260, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

In conclusion, the division gives 4560.43939393 with a balance of 6.2e-08.