We divide 635851 by 30
Let's see how many times 30 fits into 635851.

On to step 1:
The number 30 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 30

Advancing to step 2:
63 divided by 30 is 2 with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 60 away from 63, we end up with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 30

Going ahead to step 3:
30 goes into 35 1 times with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we take 30 away from 35, we end up with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 30

Advancing to step 4:
If we divide 58 by 30, we get 1 and a remainder of 28.
The next digit of our result is 1. 
Result so far: 211.0
If we subtract 30 from 58, we get 28.
Fetch the next digit (5) from the dividend, attach it to 28 and continue: 285 / 30

Let's proceed to step 5:
If we divide 285 by 30, we get 9 and a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 2119.0
Deduct 270 from 285 and we're left with 15.
Grab the next digit (1) from the dividend, add it to 15, then carry on: 151 / 30

Going ahead to step 6:
151 divided by 30 is 5 with a remainder of 1.
The next digit of our result is 5. 
Result so far: 21195.0
The remainder is 1 after subtracting 150 from 151.
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 30 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 21195.0
Subtracting 0 from 10 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.

On to step 8:
When dividing 100 by 30, we get 3 with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 21195.03
If we subtract 90 from 100, 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.

On to step 9:
When dividing 100 by 30, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 21195.033
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.

The final result is 21195.033 with a remainder of 0.001.