66108325 ÷ 321 
We're looking to find how many times 321 goes into 66108325.

Going ahead to step 1:
321 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 321

Step 2:
If we divide 66 by 321, we get 0 and a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Append the next digit (1) from the dividend to 66 and continue with: 661 / 321

Let's proceed to step 3:
321 can be fit into 661 2 times, resulting in a remainder of 19.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 642 from 661 to get 19.
Fetch the next digit (0) from the dividend, attach it to 19 and continue: 190 / 321

Let's proceed to step 4:
When dividing 190 by 321, we get 0 with a remainder of 190.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 190 leaves us with 190.
Append the next digit (8) from the dividend to 190 and continue with: 1908 / 321

Moving on to step 5:
1908 divided by 321 is 5 with a remainder of 303.
Use 5 as the next digit of our solution. 
Result so far: 205.0
Subtract 1605 from 1908 to get 303.
Bring next digit (3) of the dividend behind the 303 and repeat the process: 3033 / 321

Step 6:
321 can be fit into 3033 9 times, resulting in a remainder of 144.
Use 9 as the next digit of our solution. 
Result so far: 2059.0
If we take 2889 away from 3033, we end up with 144.
Append the next digit (2) from the dividend to 144 and continue with: 1442 / 321

Let's proceed to step 7:
321 goes into 1442 4 times with a remainder of 158.
Use 4 as the next digit of our solution. 
Result so far: 20594.0
If we subtract 1284 from 1442, we get 158.
Include the next digit (5) from the dividend after 158, then repeat: 1585 / 321

Advancing to step 8:
321 can be fit into 1585 4 times, resulting in a remainder of 301.
Record the quotient 4 as the next digit in the result. 
Result so far: 205944.0
If we take 1284 away from 1585, we end up with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Step 9:
The number 321 fits into 3010 9 times, leaving a remainder of 121.
The number 9 becomes the next digit in our result. 
Result so far: 205944.9
If we take 2889 away from 3010, we end up with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Advancing to step 10:
321 can be fit into 1210 3 times, resulting in a remainder of 247.
Use 3 as the next digit of our solution. 
Result so far: 205944.93
If we take 963 away from 1210, we end up with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Moving on to step 11:
2470 divided by 321 is 7 with a remainder of 223.
Write down 7 as next digit of the result. 
Result so far: 205944.937
Deduct 2247 from 2470 and we're left with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Step 12:
2230 divided by 321 is 6 with a remainder of 304.
Record the quotient 6 as the next digit in the result. 
Result so far: 205944.9376
If we subtract 1926 from 2230, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 13:
The number 321 fits into 3040 9 times, leaving a remainder of 151.
The number 9 becomes the next digit in our result. 
Result so far: 205944.93769
Deduct 2889 from 3040 and we're left with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Moving on to step 14:
321 goes into 1510 4 times with a remainder of 226.
Use 4 as the next digit of our solution. 
Result so far: 205944.937694
If we subtract 1284 from 1510, we get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Advancing to step 15:
2260 divided by 321 is 7 with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 205944.9376947
The remainder is 13 after subtracting 2247 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 16:
321 goes into 130 0 times with a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 205944.9376947
Deduct 0 from 130 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

In conclusion, the division gives 205944.9376947 with a balance of 1.3e-07.