We look at the division of 163139 by 75 
We want to figure out the number of times 163139 can be divided by 75.

On to step 1:
75 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 75

Moving on to step 2:
16 divided by 75 is 0 with a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Include the next digit (3) from the dividend after 16, then repeat: 163 / 75

Step 3:
The number 75 fits into 163 2 times, leaving a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 150 from 163 to get 13.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 75

Step 4:
131 divided by 75 is 1 with a remainder of 56.
Write down 1 as next digit of the result. 
Result so far: 21.0
Subtract 75 from 131 to get 56.
Bring next digit (3) of the dividend behind the 56 and repeat the process: 563 / 75

Going ahead to step 5:
563 divided by 75 is 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 217.0
Subtract 525 from 563 to get 38.
Append the next digit (9) from the dividend to 38 and continue with: 389 / 75

Moving on to step 6:
75 goes into 389 5 times with a remainder of 14.
The next digit of our result is 5. 
Result so far: 2175.0
Subtract 375 from 389 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
75 can be fit into 140 1 times, resulting in a remainder of 65.
Use 1 as the next digit of our solution. 
Result so far: 2175.1
The remainder is 65 after subtracting 75 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 8:
75 can be fit into 650 8 times, resulting in a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 2175.18
Subtract 600 from 650 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
If we divide 500 by 75, we get 6 and a remainder of 50.
The next digit of our result is 6. 
Result so far: 2175.186
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
75 goes into 500 6 times with a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 2175.1866
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The quotient of the division is 2175.1866, and the remainder is 0.0005.