We look at the division of 210435 by 12 
We want to divide 210435 by 12.

Let's proceed to step 1:
When dividing 2 by 12, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 12

Going ahead to step 2:
21 divided by 12 is 1 with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 12 from 21 leaves us with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 12

Let's proceed to step 3:
The number 12 fits into 90 7 times, leaving a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 84 from 90 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 12

Step 4:
64 divided by 12 is 5 with a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 175.0
Deduct 60 from 64 and we're left with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 12

Moving on to step 5:
12 can be fit into 43 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 1753.0
Deduct 36 from 43 and we're left with 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 12

Advancing to step 6:
If we divide 75 by 12, we get 6 and a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 17536.0
Deduct 72 from 75 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
12 can be fit into 30 2 times, resulting in a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 17536.2
Deduct 24 from 30 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
12 goes into 60 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 17536.25
If we take 60 away from 60, we end up 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.

Moving on to step 9:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 17536.25
If we take 0 away from 0, we end up 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.

On to step 10:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 17536.25
Deduct 0 from 0 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.

In conclusion, the division gives 17536.25 with a balance of 0.0.