854993 ÷ 15 
We're looking to find how many times 15 goes into 854993.

Going ahead to step 1:
8 divided by 15 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 15

Advancing to step 2:
When dividing 85 by 15, we get 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 75 from 85 and we're left with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 15

Step 3:
The number 15 fits into 104 6 times, leaving a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 56.0
If we subtract 90 from 104, we get 14.
Append the next digit (9) from the dividend to 14 and continue with: 149 / 15

Moving on to step 4:
When dividing 149 by 15, we get 9 with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 569.0
If we take 135 away from 149, we end up with 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 15

Step 5:
149 divided by 15 is 9 with a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 5699.0
Subtract 135 from 149 to get 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 15

Going ahead to step 6:
When dividing 143 by 15, we get 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 56999.0
If we subtract 135 from 143, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
If we divide 80 by 15, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 56999.5
If we subtract 75 from 80, 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.

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: 56999.53
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.

Moving on to step 9:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 56999.533
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.

The quotient of the division is 56999.533, and the remainder is 0.0005.