Let's divide 764123 by 51
We want to divide 764123 by 51.

On to step 1:
51 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 51

On to step 2:
51 goes into 76 1 times with a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 51 away from 76, we end up with 25.
Include the next digit (4) from the dividend after 25, then repeat: 254 / 51

Moving on to step 3:
The number 51 fits into 254 4 times, leaving a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 204 from 254 leaves us with 50.
Grab the next digit (1) from the dividend, add it to 50, then carry on: 501 / 51

Moving on to step 4:
When dividing 501 by 51, we get 9 with a remainder of 42.
The next digit of our result is 9. 
Result so far: 149.0
Deduct 459 from 501 and we're left with 42.
Fetch the next digit (2) from the dividend, attach it to 42 and continue: 422 / 51

Moving on to step 5:
422 divided by 51 is 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 1498.0
Subtract 408 from 422 to get 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 51

Going ahead to step 6:
When dividing 143 by 51, we get 2 with a remainder of 41.
Write down 2 as next digit of the result. 
Result so far: 14982.0
The remainder is 41 after subtracting 102 from 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 7:
51 goes into 410 8 times with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 14982.8
Deduct 408 from 410 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
51 goes into 20 0 times with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 14982.8
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
51 goes into 200 3 times with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 14982.803
If we subtract 153 from 200, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 10:
51 can be fit into 470 9 times, resulting in a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 14982.8039
If we take 459 away from 470, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 11:
110 divided by 51 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 14982.80392
Subtracting 102 from 110 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 12:
When dividing 80 by 51, we get 1 with a remainder of 29.
The next digit of our result is 1. 
Result so far: 14982.803921
Deduct 51 from 80 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 13:
If we divide 290 by 51, we get 5 and a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 14982.8039215
Subtracting 255 from 290 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 14:
350 divided by 51 is 6 with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 14982.80392156
The remainder is 44 after subtracting 306 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

After the division, we end up with 14982.80392156 and a remainder of 4.4e-08.