86221522 divided by 321 
Our goal is to divide 86221522 by 321.

Advancing to step 1:
When dividing 8 by 321, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 321

Moving on to step 2:
321 goes into 86 0 times with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Fetch the next digit (2) from the dividend, attach it to 86 and continue: 862 / 321

Advancing to step 3:
862 divided by 321 is 2 with a remainder of 220.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 642 from 862 to get 220.
Bring next digit (2) of the dividend behind the 220 and repeat the process: 2202 / 321

On to step 4:
2202 divided by 321 is 6 with a remainder of 276.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we take 1926 away from 2202, we end up with 276.
Append the next digit (1) from the dividend to 276 and continue with: 2761 / 321

Advancing to step 5:
321 goes into 2761 8 times with a remainder of 193.
The number 8 becomes the next digit in our result. 
Result so far: 268.0
If we subtract 2568 from 2761, we get 193.
Bring next digit (5) of the dividend behind the 193 and repeat the process: 1935 / 321

Moving on to step 6:
The number 321 fits into 1935 6 times, leaving a remainder of 9.
Put 6 as the next digit of the answer. 
Result so far: 2686.0
If we take 1926 away from 1935, we end up with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 321

Moving on to step 7:
92 divided by 321 is 0 with a remainder of 92.
Record the quotient 0 as the next digit in the result. 
Result so far: 26860.0
Deduct 0 from 92 and we're left with 92.
Grab the next digit (2) from the dividend, add it to 92, then carry on: 922 / 321

Step 8:
If we divide 922 by 321, we get 2 and a remainder of 280.
Write down 2 as next digit of the result. 
Result so far: 268602.0
Deduct 642 from 922 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 9:
The number 321 fits into 2800 8 times, leaving a remainder of 232.
The number 8 becomes the next digit in our result. 
Result so far: 268602.8
If we subtract 2568 from 2800, we get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Let's proceed to step 10:
When dividing 2320 by 321, we get 7 with a remainder of 73.
The number 7 becomes the next digit in our result. 
Result so far: 268602.87
Subtract 2247 from 2320 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 11:
321 goes into 730 2 times with a remainder of 88.
The next digit of our result is 2. 
Result so far: 268602.872
Subtract 642 from 730 to get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Let's proceed to step 12:
If we divide 880 by 321, we get 2 and a remainder of 238.
Write down 2 as next digit of the result. 
Result so far: 268602.8722
If we take 642 away from 880, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Our division results in 268602.8722 with a remaining 0.00238.