We look at the division of 213399 by 2 
We want to figure out the number of times 213399 can be divided by 2.

On to step 1:
2 goes into 2 1 times with a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
If we take 2 away from 2, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 2

Advancing to step 2:
1 divided by 2 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 2

On to step 3:
2 goes into 13 6 times with a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 106.0
If we take 12 away from 13, we end up with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 2

Moving on to step 4:
When dividing 13 by 2, we get 6 with a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 1066.0
The remainder is 1 after subtracting 12 from 13.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 2

Going ahead to step 5:
When dividing 19 by 2, we get 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 10669.0
Deduct 18 from 19 and we're left with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 2

Let's proceed to step 6:
19 divided by 2 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 106699.0
If we subtract 18 from 19, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
When dividing 10 by 2, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 106699.5
Deduct 10 from 10 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 106699.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
If we divide 0 by 2, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 106699.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 106699.5 with a remainder of 0.0.