86173 ÷ 85 
We want to divide 86173 by 85.

Step 1:
When dividing 8 by 85, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 85

Let's proceed to step 2:
The number 85 fits into 86 1 times, leaving a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 85 away from 86, we end up with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 85

On to step 3:
11 divided by 85 is 0 with a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 11 after subtracting 0 from 11.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 85

Advancing to step 4:
85 goes into 117 1 times with a remainder of 32.
The next digit of our result is 1. 
Result so far: 101.0
Subtracting 85 from 117 leaves us with 32.
Take the next digit (3) from the dividend and append it to 32, then repeat: 323 / 85

Step 5:
85 goes into 323 3 times with a remainder of 68.
The number 3 becomes the next digit in our result. 
Result so far: 1013.0
Subtract 255 from 323 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 6:
680 divided by 85 is 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 1013.8
The remainder is 0 after subtracting 680 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
When dividing 0 by 85, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1013.8
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.

Step 8:
When dividing 0 by 85, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1013.8
If we take 0 away from 0, we end up 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.

The quotient of the division is 1013.8, and the remainder is 0.0.