659531 ÷ 51 
We're looking to find how many times 51 goes into 659531.

Moving on to step 1:
51 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 51

Advancing to step 2:
When dividing 65 by 51, we get 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 51 from 65, we get 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 51

Going ahead to step 3:
The number 51 fits into 149 2 times, leaving a remainder of 47.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 102 away from 149, we end up with 47.
Bring next digit (5) of the dividend behind the 47 and repeat the process: 475 / 51

Advancing to step 4:
When dividing 475 by 51, we get 9 with a remainder of 16.
Put 9 as the next digit of the answer. 
Result so far: 129.0
The remainder is 16 after subtracting 459 from 475.
Include the next digit (3) from the dividend after 16, then repeat: 163 / 51

Step 5:
The number 51 fits into 163 3 times, leaving a remainder of 10.
The next digit of our result is 3. 
Result so far: 1293.0
If we take 153 away from 163, we end up with 10.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 51

On to step 6:
51 can be fit into 101 1 times, resulting in a remainder of 50.
Record the quotient 1 as the next digit in the result. 
Result so far: 12931.0
The remainder is 50 after subtracting 51 from 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 7:
The number 51 fits into 500 9 times, leaving a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 12931.9
If we take 459 away from 500, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 8:
When dividing 410 by 51, we get 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 12931.98
If we subtract 408 from 410, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 9:
20 divided by 51 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 12931.98
If we subtract 0 from 20, we get 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 10:
51 can be fit into 200 3 times, resulting in a remainder of 47.
The next digit of our result is 3. 
Result so far: 12931.9803
Subtracting 153 from 200 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 11:
51 can be fit into 470 9 times, resulting in a remainder of 11.
The next digit of our result is 9. 
Result so far: 12931.98039
Subtract 459 from 470 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 12:
110 divided by 51 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 12931.980392
If we subtract 102 from 110, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
51 goes into 80 1 times with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 12931.9803921
If we take 51 away from 80, we end up 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 14:
The number 51 fits into 290 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 12931.98039215
Deduct 255 from 290 and we're left 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.

The final outcome is 12931.98039215, with a leftover of 3.5e-08.