Let's divide 21147730 by 12
We want to divide 21147730 by 12.

Let's proceed to step 1:
2 divided by 12 is 0 with a remainder of 2.
The next digit of our result is 0. 
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 / 12

Let's proceed to step 2:
12 goes into 21 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 12 from 21 leaves us with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 12

Step 3:
When dividing 91 by 12, we get 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 17.0
Subtracting 84 from 91 leaves us with 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 12

Moving on to step 4:
12 goes into 74 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 176.0
Deduct 72 from 74 and we're left with 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 12

Going ahead to step 5:
When dividing 27 by 12, we get 2 with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 1762.0
Deduct 24 from 27 and we're left with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 12

Let's proceed to step 6:
12 can be fit into 37 3 times, resulting in a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 17623.0
Deduct 36 from 37 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 12

Going ahead to step 7:
When dividing 13 by 12, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 176231.0
If we take 12 away from 13, we end up with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 12

Advancing to step 8:
If we divide 10 by 12, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1762310.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
12 can be fit into 100 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 1762310.8
Subtracting 96 from 100 leaves us 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.

Advancing to step 10:
When dividing 40 by 12, we get 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 1762310.83
If we take 36 away from 40, 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 11:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 1762310.833
Subtracting 36 from 40 leaves us 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.

Our division results in 1762310.833 with a remaining 0.0004.