398854 ÷ 24 
Our goal is to divide 398854 by 24.

Step 1:
24 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 24

Going ahead to step 2:
When dividing 39 by 24, we get 1 with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 24 from 39 and we're left with 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 24

On to step 3:
158 divided by 24 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 16.0
Subtract 144 from 158 to get 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 24

Going ahead to step 4:
148 divided by 24 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 166.0
If we subtract 144 from 148, we get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 24

Moving on to step 5:
When dividing 45 by 24, we get 1 with a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 1661.0
Subtract 24 from 45 to get 21.
Bring next digit (4) of the dividend behind the 21 and repeat the process: 214 / 24

Step 6:
The number 24 fits into 214 8 times, leaving a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 16618.0
Subtract 192 from 214 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
If we divide 220 by 24, we get 9 and a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 16618.9
Deduct 216 from 220 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
The number 24 fits into 40 1 times, leaving a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 16618.91
Subtracting 24 from 40 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
When dividing 160 by 24, we get 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 16618.916
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
If we divide 160 by 24, we get 6 and a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 16618.9166
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 16618.9166, and the remainder is 0.00016.