We look at the division of 21063471 by 912 
We're looking to find how many times 912 goes into 21063471.

On to step 1:
The number 912 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 912

Step 2:
912 can be fit into 21 0 times, resulting in a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 912

Moving on to step 3:
When dividing 210 by 912, we get 0 with a remainder of 210.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 210 leaves us with 210.
Grab the next digit (6) from the dividend, add it to 210, then carry on: 2106 / 912

Moving on to step 4:
When dividing 2106 by 912, we get 2 with a remainder of 282.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 1824 from 2106 leaves us with 282.
Append the next digit (3) from the dividend to 282 and continue with: 2823 / 912

Advancing to step 5:
912 can be fit into 2823 3 times, resulting in a remainder of 87.
The next digit of our result is 3. 
Result so far: 23.0
If we take 2736 away from 2823, we end up with 87.
Fetch the next digit (4) from the dividend, attach it to 87 and continue: 874 / 912

Advancing to step 6:
912 goes into 874 0 times with a remainder of 874.
Put 0 as the next digit of the answer. 
Result so far: 230.0
Subtract 0 from 874 to get 874.
Grab the next digit (7) from the dividend, add it to 874, then carry on: 8747 / 912

Advancing to step 7:
If we divide 8747 by 912, we get 9 and a remainder of 539.
The next digit of our result is 9. 
Result so far: 2309.0
If we take 8208 away from 8747, we end up with 539.
Grab the next digit (1) from the dividend, add it to 539, then carry on: 5391 / 912

On to step 8:
When dividing 5391 by 912, we get 5 with a remainder of 831.
Record the quotient 5 as the next digit in the result. 
Result so far: 23095.0
If we subtract 4560 from 5391, we get 831.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8310, and continue the process.

Advancing to step 9:
912 can be fit into 8310 9 times, resulting in a remainder of 102.
Use 9 as the next digit of our solution. 
Result so far: 23095.9
If we take 8208 away from 8310, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

On to step 10:
1020 divided by 912 is 1 with a remainder of 108.
Use 1 as the next digit of our solution. 
Result so far: 23095.91
Subtracting 912 from 1020 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 11:
When dividing 1080 by 912, we get 1 with a remainder of 168.
Write down 1 as next digit of the result. 
Result so far: 23095.911
Subtracting 912 from 1080 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.

The final result is 23095.911 with a remainder of 0.0168.