421717 divided by 16 
Our goal is to divide 421717 by 16.

Moving on to step 1:
16 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 16

Going ahead to step 2:
16 can be fit into 42 2 times, resulting in a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 32 from 42 to get 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 16

On to step 3:
When dividing 101 by 16, we get 6 with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
If we subtract 96 from 101, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 16

Advancing to step 4:
16 can be fit into 57 3 times, resulting in a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 263.0
The remainder is 9 after subtracting 48 from 57.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 16

Step 5:
16 can be fit into 91 5 times, resulting in a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 2635.0
The remainder is 11 after subtracting 80 from 91.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 16

On to step 6:
If we divide 117 by 16, we get 7 and a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 26357.0
If we take 112 away from 117, 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 7:
When dividing 50 by 16, we get 3 with a remainder of 2.
The next digit of our result is 3. 
Result so far: 26357.3
The remainder is 2 after subtracting 48 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
The number 16 fits into 20 1 times, leaving a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 26357.31
If we subtract 16 from 20, we get 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 9:
16 goes into 40 2 times with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 26357.312
If we take 32 away from 40, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
When dividing 80 by 16, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 26357.3125
Deduct 80 from 80 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
16 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 26357.3125
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 12:
16 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 26357.3125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 26357.3125 and a remainder of 0.0.