We divide 30705433 by 21
Let's see how many times 21 fits into 30705433.

On to step 1:
3 divided by 21 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 21

Advancing to step 2:
When dividing 30 by 21, we get 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 21 from 30 and we're left with 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 21

Moving on to step 3:
21 goes into 97 4 times with a remainder of 13.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we subtract 84 from 97, we get 13.
Include the next digit (0) from the dividend after 13, then repeat: 130 / 21

On to step 4:
When dividing 130 by 21, we get 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 146.0
Subtracting 126 from 130 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 21

Let's proceed to step 5:
When dividing 45 by 21, we get 2 with a remainder of 3.
The next digit of our result is 2. 
Result so far: 1462.0
If we subtract 42 from 45, we get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 21

Let's proceed to step 6:
When dividing 34 by 21, we get 1 with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 14621.0
Subtract 21 from 34 to get 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 21

Going ahead to step 7:
21 goes into 133 6 times with a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 146216.0
Subtract 126 from 133 to get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 21

Advancing to step 8:
The number 21 fits into 73 3 times, leaving a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 1462163.0
Subtracting 63 from 73 leaves us 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.

Moving on to step 9:
If we divide 100 by 21, we get 4 and a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 1462163.4
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 10:
21 goes into 160 7 times with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 1462163.47
If we take 147 away from 160, we end up 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.

Let's proceed to step 11:
The number 21 fits into 130 6 times, leaving a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 1462163.476
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.

Going ahead to step 12:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 1462163.4761
If we subtract 21 from 40, we 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.

Advancing to step 13:
21 can be fit into 190 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 1462163.47619
Subtracting 189 from 190 leaves us 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.

Step 14:
21 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1462163.47619
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 15:
When dividing 100 by 21, we get 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 1462163.4761904
Subtract 84 from 100 to 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.

Step 16:
The number 21 fits into 160 7 times, leaving a remainder of 13.
The next digit of our result is 7. 
Result so far: 1462163.47619047
Subtracting 147 from 160 leaves us 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.

Our division results in 1462163.47619047 with a remaining 1.3e-08.