Let's divide 42087935 by 512
We want to divide 42087935 by 512.

Let's proceed to step 1:
If we divide 4 by 512, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 512

Advancing to step 2:
If we divide 42 by 512, we get 0 and a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Append the next digit (0) from the dividend to 42 and continue with: 420 / 512

Let's proceed to step 3:
512 goes into 420 0 times with a remainder of 420.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 420 after subtracting 0 from 420.
Bring next digit (8) of the dividend behind the 420 and repeat the process: 4208 / 512

On to step 4:
If we divide 4208 by 512, we get 8 and a remainder of 112.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 4096 from 4208, we get 112.
Take the next digit (7) from the dividend and append it to 112, then repeat: 1127 / 512

Advancing to step 5:
The number 512 fits into 1127 2 times, leaving a remainder of 103.
Write down 2 as next digit of the result. 
Result so far: 82.0
Deduct 1024 from 1127 and we're left with 103.
Append the next digit (9) from the dividend to 103 and continue with: 1039 / 512

Moving on to step 6:
512 goes into 1039 2 times with a remainder of 15.
The next digit of our result is 2. 
Result so far: 822.0
If we subtract 1024 from 1039, we get 15.
Include the next digit (3) from the dividend after 15, then repeat: 153 / 512

Moving on to step 7:
512 goes into 153 0 times with a remainder of 153.
The number 0 becomes the next digit in our result. 
Result so far: 8220.0
Deduct 0 from 153 and we're left with 153.
Fetch the next digit (5) from the dividend, attach it to 153 and continue: 1535 / 512

Advancing to step 8:
512 can be fit into 1535 2 times, resulting in a remainder of 511.
Put 2 as the next digit of the answer. 
Result so far: 82202.0
Subtract 1024 from 1535 to get 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Advancing to step 9:
When dividing 5110 by 512, we get 9 with a remainder of 502.
The number 9 becomes the next digit in our result. 
Result so far: 82202.9
Subtracting 4608 from 5110 leaves us with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Going ahead to step 10:
The number 512 fits into 5020 9 times, leaving a remainder of 412.
The number 9 becomes the next digit in our result. 
Result so far: 82202.99
Subtracting 4608 from 5020 leaves us with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Our division results in 82202.99 with a remaining 0.412.