We look at the division of 789787 by 51 
We want to divide 789787 by 51.

On to step 1:
51 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 51

On to step 2:
If we divide 78 by 51, we get 1 and a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 51 from 78 leaves us with 27.
Take the next digit (9) from the dividend and append it to 27, then repeat: 279 / 51

Let's proceed to step 3:
If we divide 279 by 51, we get 5 and a remainder of 24.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Deduct 255 from 279 and we're left with 24.
Grab the next digit (7) from the dividend, add it to 24, then carry on: 247 / 51

Let's proceed to step 4:
The number 51 fits into 247 4 times, leaving a remainder of 43.
Write down 4 as next digit of the result. 
Result so far: 154.0
Deduct 204 from 247 and we're left with 43.
Bring next digit (8) of the dividend behind the 43 and repeat the process: 438 / 51

Moving on to step 5:
438 divided by 51 is 8 with a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 1548.0
Deduct 408 from 438 and we're left with 30.
Take the next digit (7) from the dividend and append it to 30, then repeat: 307 / 51

Let's proceed to step 6:
The number 51 fits into 307 6 times, leaving a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 15486.0
The remainder is 1 after subtracting 306 from 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
If we divide 10 by 51, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 15486.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
51 goes into 100 1 times with a remainder of 49.
The next digit of our result is 1. 
Result so far: 15486.01
Subtract 51 from 100 to get 49.
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 9:
If we divide 490 by 51, we get 9 and a remainder of 31.
The next digit of our result is 9. 
Result so far: 15486.019
Subtract 459 from 490 to get 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 10:
310 divided by 51 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 15486.0196
Subtracting 306 from 310 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
When dividing 40 by 51, we get 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 15486.0196
If we take 0 away from 40, we end up 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.

On to step 12:
The number 51 fits into 400 7 times, leaving a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 15486.019607
If we subtract 357 from 400, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 13:
If we divide 430 by 51, we get 8 and a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 15486.0196078
The remainder is 22 after subtracting 408 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 14:
220 divided by 51 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 15486.01960784
Subtract 204 from 220 to 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.

After the division, we end up with 15486.01960784 and a remainder of 1.6e-08.