We're dividing 21156765 by 396 
Let's see how many times 396 fits into 21156765.

Step 1:
2 divided by 396 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 396

Let's proceed to step 2:
396 goes into 21 0 times with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 396

Moving on to step 3:
396 can be fit into 211 0 times, resulting in a remainder of 211.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Grab the next digit (5) from the dividend, add it to 211, then carry on: 2115 / 396

Step 4:
396 goes into 2115 5 times with a remainder of 135.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtracting 1980 from 2115 leaves us with 135.
Bring next digit (6) of the dividend behind the 135 and repeat the process: 1356 / 396

Going ahead to step 5:
396 can be fit into 1356 3 times, resulting in a remainder of 168.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
Subtracting 1188 from 1356 leaves us with 168.
Grab the next digit (7) from the dividend, add it to 168, then carry on: 1687 / 396

Advancing to step 6:
If we divide 1687 by 396, we get 4 and a remainder of 103.
The next digit of our result is 4. 
Result so far: 534.0
Subtracting 1584 from 1687 leaves us with 103.
Bring next digit (6) of the dividend behind the 103 and repeat the process: 1036 / 396

Step 7:
396 goes into 1036 2 times with a remainder of 244.
The next digit of our result is 2. 
Result so far: 5342.0
Subtracting 792 from 1036 leaves us with 244.
Take the next digit (5) from the dividend and append it to 244, then repeat: 2445 / 396

Going ahead to step 8:
396 can be fit into 2445 6 times, resulting in a remainder of 69.
Use 6 as the next digit of our solution. 
Result so far: 53426.0
Deduct 2376 from 2445 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 9:
690 divided by 396 is 1 with a remainder of 294.
Write down 1 as next digit of the result. 
Result so far: 53426.1
Subtracting 396 from 690 leaves us with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Step 10:
If we divide 2940 by 396, we get 7 and a remainder of 168.
Put 7 as the next digit of the answer. 
Result so far: 53426.17
The remainder is 168 after subtracting 2772 from 2940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Let's proceed to step 11:
If we divide 1680 by 396, we get 4 and a remainder of 96.
Use 4 as the next digit of our solution. 
Result so far: 53426.174
If we take 1584 away from 1680, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 12:
The number 396 fits into 960 2 times, leaving a remainder of 168.
The number 2 becomes the next digit in our result. 
Result so far: 53426.1742
The remainder is 168 after subtracting 792 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Let's proceed to step 13:
When dividing 1680 by 396, we get 4 with a remainder of 96.
The next digit of our result is 4. 
Result so far: 53426.17424
Subtract 1584 from 1680 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 14:
960 divided by 396 is 2 with a remainder of 168.
Put 2 as the next digit of the answer. 
Result so far: 53426.174242
Subtracting 792 from 960 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 15:
When dividing 1680 by 396, we get 4 with a remainder of 96.
Use 4 as the next digit of our solution. 
Result so far: 53426.1742424
If we take 1584 away from 1680, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 16:
396 goes into 960 2 times with a remainder of 168.
Put 2 as the next digit of the answer. 
Result so far: 53426.17424242
If we take 792 away from 960, we end up with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Our division results in 53426.17424242 with a remaining 1.68e-07.