We're dividing 18159537 by 321 
We're looking to find how many times 321 goes into 18159537.

Let's proceed to step 1:
1 divided by 321 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 321

Advancing to step 2:
When dividing 18 by 321, we get 0 with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 321

On to step 3:
If we divide 181 by 321, we get 0 and a remainder of 181.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 181 leaves us with 181.
Take the next digit (5) from the dividend and append it to 181, then repeat: 1815 / 321

Advancing to step 4:
The number 321 fits into 1815 5 times, leaving a remainder of 210.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 1605 from 1815 to get 210.
Bring next digit (9) of the dividend behind the 210 and repeat the process: 2109 / 321

Step 5:
321 goes into 2109 6 times with a remainder of 183.
Use 6 as the next digit of our solution. 
Result so far: 56.0
Subtract 1926 from 2109 to get 183.
Bring next digit (5) of the dividend behind the 183 and repeat the process: 1835 / 321

Let's proceed to step 6:
321 goes into 1835 5 times with a remainder of 230.
Use 5 as the next digit of our solution. 
Result so far: 565.0
Subtract 1605 from 1835 to get 230.
Bring next digit (3) of the dividend behind the 230 and repeat the process: 2303 / 321

Going ahead to step 7:
2303 divided by 321 is 7 with a remainder of 56.
Write down 7 as next digit of the result. 
Result so far: 5657.0
Deduct 2247 from 2303 and we're left with 56.
Bring next digit (7) of the dividend behind the 56 and repeat the process: 567 / 321

Step 8:
567 divided by 321 is 1 with a remainder of 246.
Write down 1 as next digit of the result. 
Result so far: 56571.0
If we take 321 away from 567, we end up with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Step 9:
If we divide 2460 by 321, we get 7 and a remainder of 213.
Record the quotient 7 as the next digit in the result. 
Result so far: 56571.7
Deduct 2247 from 2460 and we're left with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

On to step 10:
321 goes into 2130 6 times with a remainder of 204.
Use 6 as the next digit of our solution. 
Result so far: 56571.76
If we take 1926 away from 2130, we end up with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Moving on to step 11:
321 goes into 2040 6 times with a remainder of 114.
Write down 6 as next digit of the result. 
Result so far: 56571.766
Deduct 1926 from 2040 and we're left with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

In conclusion, the division gives 56571.766 with a balance of 0.0114.