168904 ÷ 1 
We want to figure out the number of times 168904 can be divided by 1.

Step 1:
1 can be fit into 1 1 times, resulting in a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 1 away from 1, we end up with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 1

On to step 2:
If we divide 6 by 1, we get 6 and a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we take 6 away from 6, we end up with 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 1

Step 3:
1 goes into 8 8 times with a remainder of 0.
The next digit of our result is 8. 
Result so far: 168.0
The remainder is 0 after subtracting 8 from 8.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 1

Going ahead to step 4:
When dividing 9 by 1, we get 9 with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 1689.0
If we subtract 9 from 9, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Let's proceed to step 5:
If we divide 0 by 1, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 16890.0
The remainder is 0 after subtracting 0 from 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 1

Moving on to step 6:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 168904.0
Subtract 4 from 4 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.

Step 7:
0 divided by 1 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 168904.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 168904.0
Deduct 0 from 0 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.

After the division, we end up with 168904.0 and a remainder of 0.0.