443486 ÷ 15 
We're looking to find how many times 15 goes into 443486.

Advancing to step 1:
4 divided by 15 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 15

Step 2:
When dividing 44 by 15, we get 2 with a remainder of 14.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 30 from 44 leaves us with 14.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 15

Moving on to step 3:
15 can be fit into 143 9 times, resulting in a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we subtract 135 from 143, we get 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 15

Advancing to step 4:
If we divide 84 by 15, we get 5 and a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 295.0
Deduct 75 from 84 and we're left with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 15

On to step 5:
If we divide 98 by 15, we get 6 and a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 2956.0
If we take 90 away from 98, we end up with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 15

Advancing to step 6:
If we divide 86 by 15, we get 5 and a remainder of 11.
Use 5 as the next digit of our solution. 
Result so far: 29565.0
Subtract 75 from 86 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
The number 15 fits into 110 7 times, leaving a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 29565.7
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
50 divided by 15 is 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 29565.73
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.

Step 9:
If we divide 50 by 15, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 29565.733
Deduct 45 from 50 and we're left 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.

After the division, we end up with 29565.733 and a remainder of 0.0005.