We divide 9313903 by 21
We want to divide 9313903 by 21.

Step 1:
The number 21 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 21

Let's proceed to step 2:
93 divided by 21 is 4 with a remainder of 9.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 84 from 93 and we're left with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 21

Advancing to step 3:
91 divided by 21 is 4 with a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Subtract 84 from 91 to get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 21

Let's proceed to step 4:
When dividing 73 by 21, we get 3 with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 443.0
If we subtract 63 from 73, we get 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 21

On to step 5:
109 divided by 21 is 5 with a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 4435.0
Subtract 105 from 109 to get 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 21

Step 6:
40 divided by 21 is 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 44351.0
Subtract 21 from 40 to get 19.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 21

Advancing to step 7:
193 divided by 21 is 9 with a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 443519.0
Subtract 189 from 193 to get 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 8:
21 goes into 40 1 times with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 443519.1
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
If we divide 190 by 21, we get 9 and a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 443519.19
Deduct 189 from 190 and we're left 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.

Moving on to step 10:
The number 21 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 443519.19
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
21 goes into 100 4 times with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 443519.1904
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
21 can be fit into 160 7 times, resulting in a remainder of 13.
The next digit of our result is 7. 
Result so far: 443519.19047
The remainder is 13 after subtracting 147 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 13:
21 can be fit into 130 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 443519.190476
If we take 126 away from 130, we end up 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 14:
21 goes into 40 1 times with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 443519.1904761
The remainder is 19 after subtracting 21 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 15:
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: 443519.19047619
Deduct 189 from 190 and we're left 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.

The final result is 443519.19047619 with a remainder of 1e-09.