We look at the division of 21303893 by 605 
Our goal is to divide 21303893 by 605.

Moving on to step 1:
When dividing 2 by 605, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 605

Going ahead to step 2:
The number 605 fits into 21 0 times, leaving a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (3) from the dividend after 21, then repeat: 213 / 605

Moving on to step 3:
605 can be fit into 213 0 times, resulting in a remainder of 213.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 213 and we're left with 213.
Include the next digit (0) from the dividend after 213, then repeat: 2130 / 605

Going ahead to step 4:
2130 divided by 605 is 3 with a remainder of 315.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 1815 from 2130 leaves us with 315.
Fetch the next digit (3) from the dividend, attach it to 315 and continue: 3153 / 605

Going ahead to step 5:
605 goes into 3153 5 times with a remainder of 128.
Write down 5 as next digit of the result. 
Result so far: 35.0
If we subtract 3025 from 3153, we get 128.
Grab the next digit (8) from the dividend, add it to 128, then carry on: 1288 / 605

Going ahead to step 6:
The number 605 fits into 1288 2 times, leaving a remainder of 78.
Use 2 as the next digit of our solution. 
Result so far: 352.0
If we take 1210 away from 1288, we end up with 78.
Bring next digit (9) of the dividend behind the 78 and repeat the process: 789 / 605

Moving on to step 7:
605 goes into 789 1 times with a remainder of 184.
Write down 1 as next digit of the result. 
Result so far: 3521.0
Subtract 605 from 789 to get 184.
Grab the next digit (3) from the dividend, add it to 184, then carry on: 1843 / 605

Advancing to step 8:
1843 divided by 605 is 3 with a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 35213.0
If we subtract 1815 from 1843, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
605 can be fit into 280 0 times, resulting in a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 35213.0
If we take 0 away from 280, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 10:
2800 divided by 605 is 4 with a remainder of 380.
Record the quotient 4 as the next digit in the result. 
Result so far: 35213.04
If we take 2420 away from 2800, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 11:
605 can be fit into 3800 6 times, resulting in a remainder of 170.
Record the quotient 6 as the next digit in the result. 
Result so far: 35213.046
Subtract 3630 from 3800 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 12:
605 can be fit into 1700 2 times, resulting in a remainder of 490.
The number 2 becomes the next digit in our result. 
Result so far: 35213.0462
If we subtract 1210 from 1700, we get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Moving on to step 13:
4900 divided by 605 is 8 with a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 35213.04628
Subtracting 4840 from 4900 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 14:
600 divided by 605 is 0 with a remainder of 600.
Record the quotient 0 as the next digit in the result. 
Result so far: 35213.04628
If we subtract 0 from 600, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 15:
6000 divided by 605 is 9 with a remainder of 555.
Record the quotient 9 as the next digit in the result. 
Result so far: 35213.0462809
Subtract 5445 from 6000 to get 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

Moving on to step 16:
When dividing 5550 by 605, we get 9 with a remainder of 105.
Put 9 as the next digit of the answer. 
Result so far: 35213.04628099
The remainder is 105 after subtracting 5445 from 5550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The final outcome is 35213.04628099, with a leftover of 1.05e-07.