161893 ÷ 1 
We want to divide 161893 by 1.

Moving on to step 1:
If we divide 1 by 1, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 1 from 1 and we're left with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 1

On to step 2:
If we divide 6 by 1, we get 6 and a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 6 from 6 and we're left with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

Moving on to step 3:
The number 1 fits into 1 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 161.0
The remainder is 0 after subtracting 1 from 1.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 1

Let's proceed to step 4:
The number 1 fits into 8 8 times, leaving a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 1618.0
Subtracting 8 from 8 leaves us with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 1

On to step 5:
1 goes into 9 9 times with a remainder of 0.
The next digit of our result is 9. 
Result so far: 16189.0
The remainder is 0 after subtracting 9 from 9.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 1

Going ahead to step 6:
1 can be fit into 3 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 161893.0
Subtracting 3 from 3 leaves us 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.

On to step 7:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 161893.0
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.

Let's proceed to step 8:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 161893.0
Subtracting 0 from 0 leaves us 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 161893.0 and a remainder of 0.0.