We're dividing 212784 by 17 
We're looking to find how many times 17 goes into 212784.

Let's proceed to step 1:
17 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 17

Moving on to step 2:
The number 17 fits into 21 1 times, leaving a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 17 from 21 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 17

Going ahead to step 3:
When dividing 42 by 17, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 34 from 42 leaves us with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 17

Advancing to step 4:
17 can be fit into 87 5 times, resulting in a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 125.0
Subtracting 85 from 87 leaves us with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 17

Let's proceed to step 5:
17 goes into 28 1 times with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1251.0
If we subtract 17 from 28, we get 11.
Grab the next digit (4) from the dividend, add it to 11, then carry on: 114 / 17

On to step 6:
17 goes into 114 6 times with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 12516.0
Subtract 102 from 114 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
The number 17 fits into 120 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 12516.7
If we take 119 away from 120, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 8:
When dividing 10 by 17, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 12516.7
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
100 divided by 17 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 12516.705
Subtracting 85 from 100 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 10:
150 divided by 17 is 8 with a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 12516.7058
Deduct 136 from 150 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 11:
If we divide 140 by 17, we get 8 and a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 12516.70588
If we take 136 away from 140, 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 outcome is 12516.70588, with a leftover of 4e-06.