We're dividing 210637 by 18 
Our goal is to divide 210637 by 18.

Going ahead to step 1:
When dividing 2 by 18, 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.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 18

Advancing to step 2:
18 can be fit into 21 1 times, resulting in a remainder of 3.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 3 after subtracting 18 from 21.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 18

Advancing to step 3:
The number 18 fits into 30 1 times, leaving a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 18 away from 30, we end up with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 18

Step 4:
18 can be fit into 126 7 times, resulting in a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
If we subtract 126 from 126, we get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 18

Step 5:
18 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 1170.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 18

On to step 6:
When dividing 37 by 18, we get 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 11702.0
The remainder is 1 after subtracting 36 from 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
The number 18 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 11702.0
If we subtract 0 from 10, we 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.

Step 8:
18 goes into 100 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 11702.05
Deduct 90 from 100 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.

Let's proceed to step 9:
The number 18 fits into 100 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 11702.055
Subtracting 90 from 100 leaves us 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.

The final result is 11702.055 with a remainder of 0.001.