939807 divided by 51 
We want to divide 939807 by 51.

Advancing to step 1:
9 divided by 51 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (3) from the dividend to 9 and continue with: 93 / 51

Going ahead to step 2:
If we divide 93 by 51, we get 1 and a remainder of 42.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 51 from 93 to get 42.
Bring next digit (9) of the dividend behind the 42 and repeat the process: 429 / 51

On to step 3:
If we divide 429 by 51, we get 8 and a remainder of 21.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we subtract 408 from 429, we get 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 51

Advancing to step 4:
When dividing 218 by 51, we get 4 with a remainder of 14.
The next digit of our result is 4. 
Result so far: 184.0
If we take 204 away from 218, we end up with 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 51

On to step 5:
140 divided by 51 is 2 with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 1842.0
If we take 102 away from 140, we end up with 38.
Grab the next digit (7) from the dividend, add it to 38, then carry on: 387 / 51

Let's proceed to step 6:
The number 51 fits into 387 7 times, leaving a remainder of 30.
Record the quotient 7 as the next digit in the result. 
Result so far: 18427.0
If we subtract 357 from 387, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 7:
51 can be fit into 300 5 times, resulting in a remainder of 45.
The next digit of our result is 5. 
Result so far: 18427.5
Deduct 255 from 300 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 8:
450 divided by 51 is 8 with a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 18427.58
If we subtract 408 from 450, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
The number 51 fits into 420 8 times, leaving a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 18427.588
If we take 408 away from 420, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 18427.588, and the remainder is 0.0012.