We're dividing 216619 by 12 
Our goal is to divide 216619 by 12.

Let's proceed to step 1:
If we divide 2 by 12, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 12

Let's proceed to step 2:
If we divide 21 by 12, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 12 from 21 and we're left with 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 12

Moving on to step 3:
12 goes into 96 8 times with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 18.0
Subtract 96 from 96 to get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 12

Advancing to step 4:
12 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 180.0
If we subtract 0 from 6, we get 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 12

On to step 5:
The number 12 fits into 61 5 times, leaving a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 1805.0
Subtracting 60 from 61 leaves us with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 12

Going ahead to step 6:
The number 12 fits into 19 1 times, leaving a remainder of 7.
The next digit of our result is 1. 
Result so far: 18051.0
Subtract 12 from 19 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
12 can be fit into 70 5 times, resulting in a remainder of 10.
The next digit of our result is 5. 
Result so far: 18051.5
Deduct 60 from 70 and we're left 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.

Advancing to step 8:
If we divide 100 by 12, we get 8 and a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 18051.58
If we take 96 away from 100, 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.

Going ahead to step 9:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 18051.583
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.

Going ahead to step 10:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 18051.5833
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.

The final result is 18051.5833 with a remainder of 4e-05.