We're dividing 810910 by 51 
Let's see how many times 51 fits into 810910.

Step 1:
The number 51 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 51

On to step 2:
The number 51 fits into 81 1 times, leaving a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 51 from 81 to get 30.
Fetch the next digit (0) from the dividend, attach it to 30 and continue: 300 / 51

Moving on to step 3:
300 divided by 51 is 5 with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we subtract 255 from 300, we get 45.
Grab the next digit (9) from the dividend, add it to 45, then carry on: 459 / 51

Let's proceed to step 4:
51 goes into 459 9 times with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 159.0
If we subtract 459 from 459, we get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 51

Advancing to step 5:
1 divided by 51 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 1590.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 51

Advancing to step 6:
51 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 15900.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
51 goes into 100 1 times with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 15900.1
The remainder is 49 after subtracting 51 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 8:
51 can be fit into 490 9 times, resulting in a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 15900.19
Subtracting 459 from 490 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 9:
If we divide 310 by 51, we get 6 and a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 15900.196
Subtract 306 from 310 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
51 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 15900.196
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
400 divided by 51 is 7 with a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 15900.19607
Subtracting 357 from 400 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 12:
430 divided by 51 is 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 15900.196078
If we subtract 408 from 430, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 13:
If we divide 220 by 51, we get 4 and a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 15900.1960784
If we subtract 204 from 220, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 14:
If we divide 160 by 51, we get 3 and a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 15900.19607843
Deduct 153 from 160 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 15900.19607843 with a balance of 7e-09.