We look at the division of 840310 by 51 
Let's see how many times 51 fits into 840310.

Moving on to step 1:
8 divided by 51 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 51

Step 2:
If we divide 84 by 51, we get 1 and a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 51 from 84 leaves us with 33.
Bring next digit (0) of the dividend behind the 33 and repeat the process: 330 / 51

Advancing to step 3:
51 goes into 330 6 times with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Deduct 306 from 330 and we're left with 24.
Take the next digit (3) from the dividend and append it to 24, then repeat: 243 / 51

Moving on to step 4:
When dividing 243 by 51, we get 4 with a remainder of 39.
Write down 4 as next digit of the result. 
Result so far: 164.0
If we subtract 204 from 243, we get 39.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 51

Moving on to step 5:
51 goes into 391 7 times with a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 1647.0
Subtract 357 from 391 to get 34.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 51

Let's proceed to step 6:
When dividing 340 by 51, we get 6 with a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 16476.0
Subtract 306 from 340 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 7:
51 can be fit into 340 6 times, resulting in a remainder of 34.
Write down 6 as next digit of the result. 
Result so far: 16476.6
The remainder is 34 after subtracting 306 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 8:
When dividing 340 by 51, we get 6 with a remainder of 34.
Write down 6 as next digit of the result. 
Result so far: 16476.66
Subtract 306 from 340 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The quotient of the division is 16476.66, and the remainder is 0.034.