We look at the division of 658530 by 51 
We want to divide 658530 by 51.

Advancing to step 1:
The number 51 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 51

Going ahead to step 2:
The number 51 fits into 65 1 times, leaving a remainder of 14.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 14 after subtracting 51 from 65.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 51

Let's proceed to step 3:
51 can be fit into 148 2 times, resulting in a remainder of 46.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 102 from 148, we get 46.
Include the next digit (5) from the dividend after 46, then repeat: 465 / 51

Moving on to step 4:
The number 51 fits into 465 9 times, leaving a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 129.0
The remainder is 6 after subtracting 459 from 465.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 51

Going ahead to step 5:
63 divided by 51 is 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1291.0
If we subtract 51 from 63, we get 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 51

Moving on to step 6:
If we divide 120 by 51, we get 2 and a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 12912.0
Subtract 102 from 120 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 7:
51 goes into 180 3 times with a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 12912.3
Deduct 153 from 180 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 8:
270 divided by 51 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 12912.35
If we take 255 away from 270, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
The number 51 fits into 150 2 times, leaving a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 12912.352
Subtracting 102 from 150 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 10:
51 goes into 480 9 times with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 12912.3529
Subtracting 459 from 480 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 11:
51 can be fit into 210 4 times, resulting in a remainder of 6.
The next digit of our result is 4. 
Result so far: 12912.35294
If we subtract 204 from 210, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
51 can be fit into 60 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 12912.352941
Subtract 51 from 60 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 13:
51 can be fit into 90 1 times, resulting in a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 12912.3529411
Deduct 51 from 90 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final outcome is 12912.3529411, with a leftover of 3.9e-07.