Let's divide 21175820 by 684
Let's see how many times 684 fits into 21175820.

Let's proceed to step 1:
When dividing 2 by 684, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 684

Moving on to step 2:
When dividing 21 by 684, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 684

On to step 3:
211 divided by 684 is 0 with a remainder of 211.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Include the next digit (7) from the dividend after 211, then repeat: 2117 / 684

Advancing to step 4:
When dividing 2117 by 684, we get 3 with a remainder of 65.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 2052 from 2117 and we're left with 65.
Fetch the next digit (5) from the dividend, attach it to 65 and continue: 655 / 684

Let's proceed to step 5:
The number 684 fits into 655 0 times, leaving a remainder of 655.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtracting 0 from 655 leaves us with 655.
Append the next digit (8) from the dividend to 655 and continue with: 6558 / 684

Advancing to step 6:
684 goes into 6558 9 times with a remainder of 402.
Use 9 as the next digit of our solution. 
Result so far: 309.0
Subtracting 6156 from 6558 leaves us with 402.
Take the next digit (2) from the dividend and append it to 402, then repeat: 4022 / 684

Going ahead to step 7:
4022 divided by 684 is 5 with a remainder of 602.
Put 5 as the next digit of the answer. 
Result so far: 3095.0
If we take 3420 away from 4022, we end up with 602.
Fetch the next digit (0) from the dividend, attach it to 602 and continue: 6020 / 684

Moving on to step 8:
If we divide 6020 by 684, we get 8 and a remainder of 548.
Use 8 as the next digit of our solution. 
Result so far: 30958.0
The remainder is 548 after subtracting 5472 from 6020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Going ahead to step 9:
When dividing 5480 by 684, we get 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 30958.8
If we subtract 5472 from 5480, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
The number 684 fits into 80 0 times, leaving a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 30958.8
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 11:
684 can be fit into 800 1 times, resulting in a remainder of 116.
The number 1 becomes the next digit in our result. 
Result so far: 30958.801
Deduct 684 from 800 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 12:
684 can be fit into 1160 1 times, resulting in a remainder of 476.
Put 1 as the next digit of the answer. 
Result so far: 30958.8011
Subtract 684 from 1160 to get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

The final result is 30958.8011 with a remainder of 0.00476.