We divide 304888 by 21
Our goal is to divide 304888 by 21.

Step 1:
21 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 21

On to step 2:
If we divide 30 by 21, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 9 after subtracting 21 from 30.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 21

Let's proceed to step 3:
21 goes into 94 4 times with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 14.0
Deduct 84 from 94 and we're left with 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 21

On to step 4:
21 goes into 108 5 times with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 145.0
If we take 105 away from 108, we end up with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 21

On to step 5:
The number 21 fits into 38 1 times, leaving a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 1451.0
If we take 21 away from 38, we end up with 17.
Append the next digit (8) from the dividend to 17 and continue with: 178 / 21

Let's proceed to step 6:
178 divided by 21 is 8 with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 14518.0
The remainder is 10 after subtracting 168 from 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
If we divide 100 by 21, we get 4 and a remainder of 16.
The next digit of our result is 4. 
Result so far: 14518.4
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
The number 21 fits into 160 7 times, leaving a remainder of 13.
The next digit of our result is 7. 
Result so far: 14518.47
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 9:
21 goes into 130 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 14518.476
Subtracting 126 from 130 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
When dividing 40 by 21, we get 1 with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 14518.4761
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 11:
21 can be fit into 190 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 14518.47619
If we take 189 away from 190, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 12:
If we divide 10 by 21, we get 0 and a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 14518.47619
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 13:
100 divided by 21 is 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 14518.4761904
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 14:
When dividing 160 by 21, we get 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 14518.47619047
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 14518.47619047 and a remainder of 1.3e-08.