We look at the division of 30919008 by 21 
We're looking to find how many times 21 goes into 30919008.

Let's proceed to step 1:
3 divided by 21 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 21

Going ahead to step 2:
The number 21 fits into 30 1 times, leaving a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 21 from 30, we get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 21

Going ahead to step 3:
99 divided by 21 is 4 with a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtracting 84 from 99 leaves us with 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 21

Moving on to step 4:
151 divided by 21 is 7 with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 147.0
If we take 147 away from 151, we end up with 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 21

Let's proceed to step 5:
21 can be fit into 49 2 times, resulting in a remainder of 7.
The next digit of our result is 2. 
Result so far: 1472.0
Subtracting 42 from 49 leaves us with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 21

Advancing to step 6:
21 can be fit into 70 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 14723.0
Deduct 63 from 70 and we're left with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 21

On to step 7:
When dividing 70 by 21, we get 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 147233.0
The remainder is 7 after subtracting 63 from 70.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 21

Advancing to step 8:
21 goes into 78 3 times with a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 1472333.0
If we subtract 63 from 78, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
150 divided by 21 is 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 1472333.7
Deduct 147 from 150 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 10:
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: 1472333.71
Subtracting 21 from 30 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 11:
90 divided by 21 is 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 1472333.714
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
If we divide 60 by 21, we get 2 and a remainder of 18.
The next digit of our result is 2. 
Result so far: 1472333.7142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 13:
21 goes into 180 8 times with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 1472333.71428
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 14:
120 divided by 21 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 1472333.714285
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 15:
If we divide 150 by 21, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 1472333.7142857
Subtracting 147 from 150 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 16:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 1472333.71428571
Deduct 21 from 30 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Our division results in 1472333.71428571 with a remaining 9e-09.