52412489 ÷ 15 
We want to divide 52412489 by 15.

Moving on to step 1:
15 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 15

Moving on to step 2:
52 divided by 15 is 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 45 away from 52, we end up with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 15

Moving on to step 3:
74 divided by 15 is 4 with a remainder of 14.
The next digit of our result is 4. 
Result so far: 34.0
The remainder is 14 after subtracting 60 from 74.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 15

Going ahead to step 4:
15 goes into 141 9 times with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 349.0
Deduct 135 from 141 and we're left with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 15

Moving on to step 5:
15 can be fit into 62 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 3494.0
If we take 60 away from 62, we end up with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 15

Step 6:
15 goes into 24 1 times with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 34941.0
Subtract 15 from 24 to get 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 15

Let's proceed to step 7:
If we divide 98 by 15, we get 6 and a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 349416.0
Subtract 90 from 98 to get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 15

Let's proceed to step 8:
If we divide 89 by 15, we get 5 and a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 3494165.0
Deduct 75 from 89 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 9:
When dividing 140 by 15, we get 9 with a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 3494165.9
If we take 135 away from 140, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 10:
If we divide 50 by 15, we get 3 and a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 3494165.93
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 11:
15 goes into 50 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 3494165.933
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 3494165.933, with a leftover of 0.0005.