We look at the division of 15585578 by 522 
We want to figure out the number of times 15585578 can be divided by 522.

On to step 1:
The number 522 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
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 / 522

Step 2:
When dividing 15 by 522, we get 0 with a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 522

On to step 3:
522 goes into 155 0 times with a remainder of 155.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 155 after subtracting 0 from 155.
Fetch the next digit (8) from the dividend, attach it to 155 and continue: 1558 / 522

On to step 4:
522 goes into 1558 2 times with a remainder of 514.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1044 from 1558 and we're left with 514.
Fetch the next digit (5) from the dividend, attach it to 514 and continue: 5145 / 522

Step 5:
When dividing 5145 by 522, we get 9 with a remainder of 447.
Write down 9 as next digit of the result. 
Result so far: 29.0
Deduct 4698 from 5145 and we're left with 447.
Take the next digit (5) from the dividend and append it to 447, then repeat: 4475 / 522

Moving on to step 6:
522 goes into 4475 8 times with a remainder of 299.
Record the quotient 8 as the next digit in the result. 
Result so far: 298.0
If we subtract 4176 from 4475, we get 299.
Fetch the next digit (7) from the dividend, attach it to 299 and continue: 2997 / 522

Advancing to step 7:
522 can be fit into 2997 5 times, resulting in a remainder of 387.
Use 5 as the next digit of our solution. 
Result so far: 2985.0
Subtract 2610 from 2997 to get 387.
Include the next digit (8) from the dividend after 387, then repeat: 3878 / 522

Moving on to step 8:
522 goes into 3878 7 times with a remainder of 224.
The next digit of our result is 7. 
Result so far: 29857.0
Subtract 3654 from 3878 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Going ahead to step 9:
2240 divided by 522 is 4 with a remainder of 152.
Use 4 as the next digit of our solution. 
Result so far: 29857.4
If we take 2088 away from 2240, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Moving on to step 10:
The number 522 fits into 1520 2 times, leaving a remainder of 476.
Write down 2 as next digit of the result. 
Result so far: 29857.42
Subtract 1044 from 1520 to get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Moving on to step 11:
522 goes into 4760 9 times with a remainder of 62.
Record the quotient 9 as the next digit in the result. 
Result so far: 29857.429
If we subtract 4698 from 4760, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 12:
When dividing 620 by 522, we get 1 with a remainder of 98.
Put 1 as the next digit of the answer. 
Result so far: 29857.4291
If we subtract 522 from 620, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

On to step 13:
The number 522 fits into 980 1 times, leaving a remainder of 458.
The next digit of our result is 1. 
Result so far: 29857.42911
Subtract 522 from 980 to get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

The quotient of the division is 29857.42911, and the remainder is 0.000458.