We're dividing 15242291 by 321 
We want to divide 15242291 by 321.

Let's proceed to step 1:
The number 321 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 321

Advancing to step 2:
321 goes into 15 0 times with a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Include the next digit (2) from the dividend after 15, then repeat: 152 / 321

Let's proceed to step 3:
The number 321 fits into 152 0 times, leaving a remainder of 152.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 152, we get 152.
Grab the next digit (4) from the dividend, add it to 152, then carry on: 1524 / 321

Let's proceed to step 4:
The number 321 fits into 1524 4 times, leaving a remainder of 240.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 1284 away from 1524, we end up with 240.
Take the next digit (2) from the dividend and append it to 240, then repeat: 2402 / 321

Going ahead to step 5:
When dividing 2402 by 321, we get 7 with a remainder of 155.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
If we take 2247 away from 2402, we end up with 155.
Grab the next digit (2) from the dividend, add it to 155, then carry on: 1552 / 321

Going ahead to step 6:
1552 divided by 321 is 4 with a remainder of 268.
Record the quotient 4 as the next digit in the result. 
Result so far: 474.0
Subtract 1284 from 1552 to get 268.
Take the next digit (9) from the dividend and append it to 268, then repeat: 2689 / 321

Moving on to step 7:
When dividing 2689 by 321, we get 8 with a remainder of 121.
The next digit of our result is 8. 
Result so far: 4748.0
Subtract 2568 from 2689 to get 121.
Bring next digit (1) of the dividend behind the 121 and repeat the process: 1211 / 321

Let's proceed to step 8:
321 goes into 1211 3 times with a remainder of 248.
Put 3 as the next digit of the answer. 
Result so far: 47483.0
If we subtract 963 from 1211, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Let's proceed to step 9:
2480 divided by 321 is 7 with a remainder of 233.
The number 7 becomes the next digit in our result. 
Result so far: 47483.7
Subtract 2247 from 2480 to get 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

On to step 10:
321 can be fit into 2330 7 times, resulting in a remainder of 83.
Write down 7 as next digit of the result. 
Result so far: 47483.77
Subtract 2247 from 2330 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Our division results in 47483.77 with a remaining 0.083.