21168989 ÷ 300 
Our goal is to divide 21168989 by 300.

Let's proceed to step 1:
2 divided by 300 is 0 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 (1) from the dividend after 2, then repeat: 21 / 300

Going ahead to step 2:
300 goes into 21 0 times with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 300

Let's proceed to step 3:
If we divide 211 by 300, we get 0 and a remainder of 211.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Include the next digit (6) from the dividend after 211, then repeat: 2116 / 300

Step 4:
The number 300 fits into 2116 7 times, leaving a remainder of 16.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 2100 from 2116 leaves us with 16.
Take the next digit (8) from the dividend and append it to 16, then repeat: 168 / 300

Going ahead to step 5:
168 divided by 300 is 0 with a remainder of 168.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
If we take 0 away from 168, we end up with 168.
Fetch the next digit (9) from the dividend, attach it to 168 and continue: 1689 / 300

On to step 6:
If we divide 1689 by 300, we get 5 and a remainder of 189.
Record the quotient 5 as the next digit in the result. 
Result so far: 705.0
Subtracting 1500 from 1689 leaves us with 189.
Fetch the next digit (8) from the dividend, attach it to 189 and continue: 1898 / 300

On to step 7:
300 goes into 1898 6 times with a remainder of 98.
The next digit of our result is 6. 
Result so far: 7056.0
If we subtract 1800 from 1898, we get 98.
Fetch the next digit (9) from the dividend, attach it to 98 and continue: 989 / 300

On to step 8:
989 divided by 300 is 3 with a remainder of 89.
Put 3 as the next digit of the answer. 
Result so far: 70563.0
Deduct 900 from 989 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Step 9:
890 divided by 300 is 2 with a remainder of 290.
The number 2 becomes the next digit in our result. 
Result so far: 70563.2
Deduct 600 from 890 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 10:
When dividing 2900 by 300, we get 9 with a remainder of 200.
Record the quotient 9 as the next digit in the result. 
Result so far: 70563.29
The remainder is 200 after subtracting 2700 from 2900.
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 11:
When dividing 2000 by 300, we get 6 with a remainder of 200.
The number 6 becomes the next digit in our result. 
Result so far: 70563.296
If we take 1800 away from 2000, 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.

On to step 12:
When dividing 2000 by 300, we get 6 with a remainder of 200.
Use 6 as the next digit of our solution. 
Result so far: 70563.2966
Deduct 1800 from 2000 and we're left 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.

The final result is 70563.2966 with a remainder of 0.002.