169854 divided by 87 
We want to figure out the number of times 169854 can be divided by 87.

On to step 1:
If we divide 1 by 87, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 87

Going ahead to step 2:
87 goes into 16 0 times with a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Take the next digit (9) from the dividend and append it to 16, then repeat: 169 / 87

Going ahead to step 3:
87 goes into 169 1 times with a remainder of 82.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 87 from 169 to get 82.
Bring next digit (8) of the dividend behind the 82 and repeat the process: 828 / 87

Step 4:
87 can be fit into 828 9 times, resulting in a remainder of 45.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we take 783 away from 828, we end up with 45.
Grab the next digit (5) from the dividend, add it to 45, then carry on: 455 / 87

Moving on to step 5:
When dividing 455 by 87, we get 5 with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 195.0
Deduct 435 from 455 and we're left with 20.
Fetch the next digit (4) from the dividend, attach it to 20 and continue: 204 / 87

On to step 6:
If we divide 204 by 87, we get 2 and a remainder of 30.
The number 2 becomes the next digit in our result. 
Result so far: 1952.0
Deduct 174 from 204 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 7:
If we divide 300 by 87, we get 3 and a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 1952.3
Subtract 261 from 300 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 8:
87 can be fit into 390 4 times, resulting in a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 1952.34
If we subtract 348 from 390, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 9:
87 can be fit into 420 4 times, resulting in a remainder of 72.
The next digit of our result is 4. 
Result so far: 1952.344
If we take 348 away from 420, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 1952.344, with a leftover of 0.0072.