We divide 537869 by 15
We're looking to find how many times 15 goes into 537869.

Advancing to step 1:
15 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 15

On to step 2:
When dividing 53 by 15, we get 3 with a remainder of 8.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 45 from 53 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 15

Step 3:
15 goes into 87 5 times with a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Deduct 75 from 87 and we're left with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 15

Step 4:
The number 15 fits into 128 8 times, leaving a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 358.0
If we subtract 120 from 128, we get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 15

On to step 5:
If we divide 86 by 15, we get 5 and a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 3585.0
Subtracting 75 from 86 leaves us with 11.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 15

On to step 6:
119 divided by 15 is 7 with a remainder of 14.
The next digit of our result is 7. 
Result so far: 35857.0
If we subtract 105 from 119, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 7:
140 divided by 15 is 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 35857.9
Subtracting 135 from 140 leaves us 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.

Moving on to step 8:
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: 35857.93
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
If we divide 50 by 15, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 35857.933
Subtracting 45 from 50 leaves us 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.

The final outcome is 35857.933, with a leftover of 0.0005.