Let's divide 79309974 by 321
We want to figure out the number of times 79309974 can be divided by 321.

Step 1:
321 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 321

Going ahead to step 2:
The number 321 fits into 79 0 times, leaving a remainder of 79.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 79 leaves us with 79.
Bring next digit (3) of the dividend behind the 79 and repeat the process: 793 / 321

Let's proceed to step 3:
If we divide 793 by 321, we get 2 and a remainder of 151.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 642 from 793 and we're left with 151.
Fetch the next digit (0) from the dividend, attach it to 151 and continue: 1510 / 321

Step 4:
321 can be fit into 1510 4 times, resulting in a remainder of 226.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
The remainder is 226 after subtracting 1284 from 1510.
Include the next digit (9) from the dividend after 226, then repeat: 2269 / 321

Step 5:
321 goes into 2269 7 times with a remainder of 22.
Record the quotient 7 as the next digit in the result. 
Result so far: 247.0
The remainder is 22 after subtracting 2247 from 2269.
Grab the next digit (9) from the dividend, add it to 22, then carry on: 229 / 321

Moving on to step 6:
If we divide 229 by 321, we get 0 and a remainder of 229.
The next digit of our result is 0. 
Result so far: 2470.0
Deduct 0 from 229 and we're left with 229.
Take the next digit (7) from the dividend and append it to 229, then repeat: 2297 / 321

On to step 7:
321 can be fit into 2297 7 times, resulting in a remainder of 50.
Put 7 as the next digit of the answer. 
Result so far: 24707.0
If we take 2247 away from 2297, we end up with 50.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 321

Moving on to step 8:
When dividing 504 by 321, we get 1 with a remainder of 183.
The number 1 becomes the next digit in our result. 
Result so far: 247071.0
Subtracting 321 from 504 leaves us with 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Let's proceed to step 9:
321 can be fit into 1830 5 times, resulting in a remainder of 225.
Write down 5 as next digit of the result. 
Result so far: 247071.5
Subtract 1605 from 1830 to get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Step 10:
2250 divided by 321 is 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 247071.57
The remainder is 3 after subtracting 2247 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 11:
321 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 247071.57
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 12:
321 can be fit into 300 0 times, resulting in a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 247071.57
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Our division results in 247071.57 with a remaining 0.003.