We're dividing 789810 by 51 
We're looking to find how many times 51 goes into 789810.

Step 1:
51 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 51

Moving on to step 2:
When dividing 78 by 51, we get 1 with a remainder of 27.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 51 from 78 and we're left with 27.
Fetch the next digit (9) from the dividend, attach it to 27 and continue: 279 / 51

Advancing to step 3:
279 divided by 51 is 5 with a remainder of 24.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 255 from 279, we get 24.
Fetch the next digit (8) from the dividend, attach it to 24 and continue: 248 / 51

Let's proceed to step 4:
If we divide 248 by 51, we get 4 and a remainder of 44.
The number 4 becomes the next digit in our result. 
Result so far: 154.0
The remainder is 44 after subtracting 204 from 248.
Take the next digit (1) from the dividend and append it to 44, then repeat: 441 / 51

Let's proceed to step 5:
When dividing 441 by 51, we get 8 with a remainder of 33.
The next digit of our result is 8. 
Result so far: 1548.0
If we subtract 408 from 441, we get 33.
Append the next digit (0) from the dividend to 33 and continue with: 330 / 51

On to step 6:
51 can be fit into 330 6 times, resulting in a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 15486.0
The remainder is 24 after subtracting 306 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 7:
When dividing 240 by 51, we get 4 with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 15486.4
The remainder is 36 after subtracting 204 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 8:
51 can be fit into 360 7 times, resulting in a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 15486.47
The remainder is 3 after subtracting 357 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 9:
51 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 15486.47
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
When dividing 300 by 51, we get 5 with a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 15486.4705
Subtracting 255 from 300 leaves us 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 11:
51 can be fit into 450 8 times, resulting in a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 15486.47058
Deduct 408 from 450 and we're left with 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 12:
If we divide 420 by 51, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 15486.470588
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 15486.470588, and the remainder is 1.2e-06.