We look at the division of 638535 by 43 
Let's see how many times 43 fits into 638535.

Going ahead to step 1:
The number 43 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 43

On to step 2:
43 goes into 63 1 times with a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 43 away from 63, we end up with 20.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 43

On to step 3:
43 can be fit into 208 4 times, resulting in a remainder of 36.
The next digit of our result is 4. 
Result so far: 14.0
The remainder is 36 after subtracting 172 from 208.
Grab the next digit (5) from the dividend, add it to 36, then carry on: 365 / 43

On to step 4:
43 can be fit into 365 8 times, resulting in a remainder of 21.
Write down 8 as next digit of the result. 
Result so far: 148.0
If we take 344 away from 365, we end up with 21.
Include the next digit (3) from the dividend after 21, then repeat: 213 / 43

On to step 5:
43 can be fit into 213 4 times, resulting in a remainder of 41.
Put 4 as the next digit of the answer. 
Result so far: 1484.0
Deduct 172 from 213 and we're left with 41.
Include the next digit (5) from the dividend after 41, then repeat: 415 / 43

Advancing to step 6:
If we divide 415 by 43, we get 9 and a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 14849.0
Subtracting 387 from 415 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
When dividing 280 by 43, we get 6 with a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 14849.6
The remainder is 22 after subtracting 258 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 8:
43 can be fit into 220 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 14849.65
Subtracting 215 from 220 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
43 goes into 50 1 times with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 14849.651
Deduct 43 from 50 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 10:
If we divide 70 by 43, we get 1 and a remainder of 27.
The next digit of our result is 1. 
Result so far: 14849.6511
Deduct 43 from 70 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Our division results in 14849.6511 with a remaining 0.00027.