We're dividing 12159321 by 163 
We want to figure out the number of times 12159321 can be divided by 163.

On to step 1:
163 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 163

Step 2:
If we divide 12 by 163, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 163

Going ahead to step 3:
121 divided by 163 is 0 with a remainder of 121.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 121 to get 121.
Grab the next digit (5) from the dividend, add it to 121, then carry on: 1215 / 163

Step 4:
1215 divided by 163 is 7 with a remainder of 74.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 74 after subtracting 1141 from 1215.
Fetch the next digit (9) from the dividend, attach it to 74 and continue: 749 / 163

On to step 5:
163 goes into 749 4 times with a remainder of 97.
Write down 4 as next digit of the result. 
Result so far: 74.0
Deduct 652 from 749 and we're left with 97.
Fetch the next digit (3) from the dividend, attach it to 97 and continue: 973 / 163

Let's proceed to step 6:
If we divide 973 by 163, we get 5 and a remainder of 158.
The next digit of our result is 5. 
Result so far: 745.0
The remainder is 158 after subtracting 815 from 973.
Fetch the next digit (2) from the dividend, attach it to 158 and continue: 1582 / 163

Let's proceed to step 7:
If we divide 1582 by 163, we get 9 and a remainder of 115.
The next digit of our result is 9. 
Result so far: 7459.0
If we subtract 1467 from 1582, we get 115.
Bring next digit (1) of the dividend behind the 115 and repeat the process: 1151 / 163

Going ahead to step 8:
163 goes into 1151 7 times with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 74597.0
The remainder is 10 after subtracting 1141 from 1151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
When dividing 100 by 163, we get 0 with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 74597.0
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 10:
When dividing 1000 by 163, we get 6 with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 74597.06
If we subtract 978 from 1000, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 11:
163 goes into 220 1 times with a remainder of 57.
Write down 1 as next digit of the result. 
Result so far: 74597.061
Subtract 163 from 220 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 12:
163 goes into 570 3 times with a remainder of 81.
Record the quotient 3 as the next digit in the result. 
Result so far: 74597.0613
The remainder is 81 after subtracting 489 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 13:
If we divide 810 by 163, we get 4 and a remainder of 158.
Write down 4 as next digit of the result. 
Result so far: 74597.06134
The remainder is 158 after subtracting 652 from 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Advancing to step 14:
163 goes into 1580 9 times with a remainder of 113.
Put 9 as the next digit of the answer. 
Result so far: 74597.061349
The remainder is 113 after subtracting 1467 from 1580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Advancing to step 15:
If we divide 1130 by 163, we get 6 and a remainder of 152.
The number 6 becomes the next digit in our result. 
Result so far: 74597.0613496
If we subtract 978 from 1130, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

On to step 16:
163 can be fit into 1520 9 times, resulting in a remainder of 53.
Record the quotient 9 as the next digit in the result. 
Result so far: 74597.06134969
Subtracting 1467 from 1520 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Our division results in 74597.06134969 with a remaining 5.3e-08.