647427 ÷ 51 
Let's see how many times 51 fits into 647427.

Moving on to step 1:
When dividing 6 by 51, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 51

Advancing to step 2:
51 goes into 64 1 times with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 51 from 64 leaves us with 13.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 51

Advancing to step 3:
If we divide 137 by 51, we get 2 and a remainder of 35.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we take 102 away from 137, we end up with 35.
Append the next digit (4) from the dividend to 35 and continue with: 354 / 51

Advancing to step 4:
51 can be fit into 354 6 times, resulting in a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 126.0
Subtract 306 from 354 to get 48.
Bring next digit (2) of the dividend behind the 48 and repeat the process: 482 / 51

Going ahead to step 5:
If we divide 482 by 51, we get 9 and a remainder of 23.
The next digit of our result is 9. 
Result so far: 1269.0
Subtract 459 from 482 to get 23.
Take the next digit (7) from the dividend and append it to 23, then repeat: 237 / 51

Moving on to step 6:
237 divided by 51 is 4 with a remainder of 33.
Use 4 as the next digit of our solution. 
Result so far: 12694.0
Deduct 204 from 237 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 7:
If we divide 330 by 51, we get 6 and a remainder of 24.
The next digit of our result is 6. 
Result so far: 12694.6
Subtract 306 from 330 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 8:
If we divide 240 by 51, we get 4 and a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 12694.64
Subtract 204 from 240 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 9:
51 goes into 360 7 times with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 12694.647
Deduct 357 from 360 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
If we divide 30 by 51, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 12694.647
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
The number 51 fits into 300 5 times, leaving a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 12694.64705
If we subtract 255 from 300, we get 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 12:
If we divide 450 by 51, we get 8 and a remainder of 42.
The next digit of our result is 8. 
Result so far: 12694.647058
The remainder is 42 after subtracting 408 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 13:
51 can be fit into 420 8 times, resulting in a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 12694.6470588
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 12694.6470588, with a leftover of 1.2e-07.