We look at the division of 15215831 by 482 
We want to figure out the number of times 15215831 can be divided by 482.

On to step 1:
The number 482 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 482

Step 2:
482 goes into 15 0 times with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (2) from the dividend and append it to 15, then repeat: 152 / 482

Going ahead to step 3:
152 divided by 482 is 0 with a remainder of 152.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 152 leaves us with 152.
Grab the next digit (1) from the dividend, add it to 152, then carry on: 1521 / 482

Step 4:
482 goes into 1521 3 times with a remainder of 75.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 75 after subtracting 1446 from 1521.
Take the next digit (5) from the dividend and append it to 75, then repeat: 755 / 482

Let's proceed to step 5:
When dividing 755 by 482, we get 1 with a remainder of 273.
The next digit of our result is 1. 
Result so far: 31.0
Subtract 482 from 755 to get 273.
Bring next digit (8) of the dividend behind the 273 and repeat the process: 2738 / 482

Step 6:
The number 482 fits into 2738 5 times, leaving a remainder of 328.
Use 5 as the next digit of our solution. 
Result so far: 315.0
If we take 2410 away from 2738, we end up with 328.
Append the next digit (3) from the dividend to 328 and continue with: 3283 / 482

Going ahead to step 7:
The number 482 fits into 3283 6 times, leaving a remainder of 391.
Put 6 as the next digit of the answer. 
Result so far: 3156.0
If we subtract 2892 from 3283, we get 391.
Take the next digit (1) from the dividend and append it to 391, then repeat: 3911 / 482

On to step 8:
The number 482 fits into 3911 8 times, leaving a remainder of 55.
Put 8 as the next digit of the answer. 
Result so far: 31568.0
Deduct 3856 from 3911 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 9:
If we divide 550 by 482, we get 1 and a remainder of 68.
Put 1 as the next digit of the answer. 
Result so far: 31568.1
Deduct 482 from 550 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 10:
When dividing 680 by 482, we get 1 with a remainder of 198.
Put 1 as the next digit of the answer. 
Result so far: 31568.11
Subtract 482 from 680 to get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

The final result is 31568.11 with a remainder of 0.198.