We divide 39862393 by 510
Let's see how many times 510 fits into 39862393.

On to step 1:
When dividing 3 by 510, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 510

Let's proceed to step 2:
510 goes into 39 0 times with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (8) from the dividend after 39, then repeat: 398 / 510

Advancing to step 3:
The number 510 fits into 398 0 times, leaving a remainder of 398.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 398 after subtracting 0 from 398.
Append the next digit (6) from the dividend to 398 and continue with: 3986 / 510

Advancing to step 4:
If we divide 3986 by 510, we get 7 and a remainder of 416.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 3570 from 3986 leaves us with 416.
Grab the next digit (2) from the dividend, add it to 416, then carry on: 4162 / 510

Going ahead to step 5:
The number 510 fits into 4162 8 times, leaving a remainder of 82.
The next digit of our result is 8. 
Result so far: 78.0
If we take 4080 away from 4162, we end up with 82.
Include the next digit (3) from the dividend after 82, then repeat: 823 / 510

Let's proceed to step 6:
If we divide 823 by 510, we get 1 and a remainder of 313.
Record the quotient 1 as the next digit in the result. 
Result so far: 781.0
The remainder is 313 after subtracting 510 from 823.
Take the next digit (9) from the dividend and append it to 313, then repeat: 3139 / 510

Advancing to step 7:
When dividing 3139 by 510, we get 6 with a remainder of 79.
The next digit of our result is 6. 
Result so far: 7816.0
The remainder is 79 after subtracting 3060 from 3139.
Append the next digit (3) from the dividend to 79 and continue with: 793 / 510

Step 8:
510 goes into 793 1 times with a remainder of 283.
Write down 1 as next digit of the result. 
Result so far: 78161.0
The remainder is 283 after subtracting 510 from 793.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Advancing to step 9:
510 can be fit into 2830 5 times, resulting in a remainder of 280.
Use 5 as the next digit of our solution. 
Result so far: 78161.5
Deduct 2550 from 2830 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 10:
510 can be fit into 2800 5 times, resulting in a remainder of 250.
The number 5 becomes the next digit in our result. 
Result so far: 78161.55
The remainder is 250 after subtracting 2550 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

The final result is 78161.55 with a remainder of 0.25.