51255966 ÷ 163 
We want to divide 51255966 by 163.

Going ahead to step 1:
5 divided by 163 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 163

Advancing to step 2:
If we divide 51 by 163, we get 0 and a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Include the next digit (2) from the dividend after 51, then repeat: 512 / 163

On to step 3:
163 can be fit into 512 3 times, resulting in a remainder of 23.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 23 after subtracting 489 from 512.
Include the next digit (5) from the dividend after 23, then repeat: 235 / 163

Let's proceed to step 4:
163 can be fit into 235 1 times, resulting in a remainder of 72.
The next digit of our result is 1. 
Result so far: 31.0
Subtract 163 from 235 to get 72.
Grab the next digit (5) from the dividend, add it to 72, then carry on: 725 / 163

Step 5:
163 can be fit into 725 4 times, resulting in a remainder of 73.
Use 4 as the next digit of our solution. 
Result so far: 314.0
Subtract 652 from 725 to get 73.
Bring next digit (9) of the dividend behind the 73 and repeat the process: 739 / 163

Let's proceed to step 6:
The number 163 fits into 739 4 times, leaving a remainder of 87.
The next digit of our result is 4. 
Result so far: 3144.0
If we subtract 652 from 739, we get 87.
Grab the next digit (6) from the dividend, add it to 87, then carry on: 876 / 163

Let's proceed to step 7:
876 divided by 163 is 5 with a remainder of 61.
The number 5 becomes the next digit in our result. 
Result so far: 31445.0
The remainder is 61 after subtracting 815 from 876.
Grab the next digit (6) from the dividend, add it to 61, then carry on: 616 / 163

Step 8:
616 divided by 163 is 3 with a remainder of 127.
Write down 3 as next digit of the result. 
Result so far: 314453.0
If we subtract 489 from 616, we get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Step 9:
The number 163 fits into 1270 7 times, leaving a remainder of 129.
Record the quotient 7 as the next digit in the result. 
Result so far: 314453.7
If we take 1141 away from 1270, we end up with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

On to step 10:
If we divide 1290 by 163, we get 7 and a remainder of 149.
The next digit of our result is 7. 
Result so far: 314453.77
Subtract 1141 from 1290 to get 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

The quotient of the division is 314453.77, and the remainder is 0.149.