We're dividing 172486 by 64 
Let's see how many times 64 fits into 172486.

Step 1:
The number 64 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 64

On to step 2:
17 divided by 64 is 0 with a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 64

Moving on to step 3:
When dividing 172 by 64, we get 2 with a remainder of 44.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 128 from 172 and we're left with 44.
Include the next digit (4) from the dividend after 44, then repeat: 444 / 64

Step 4:
64 goes into 444 6 times with a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 26.0
Deduct 384 from 444 and we're left with 60.
Append the next digit (8) from the dividend to 60 and continue with: 608 / 64

Let's proceed to step 5:
When dividing 608 by 64, we get 9 with a remainder of 32.
The next digit of our result is 9. 
Result so far: 269.0
Deduct 576 from 608 and we're left with 32.
Fetch the next digit (6) from the dividend, attach it to 32 and continue: 326 / 64

Let's proceed to step 6:
64 can be fit into 326 5 times, resulting in a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 2695.0
Deduct 320 from 326 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
64 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 2695.0
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 8:
If we divide 600 by 64, we get 9 and a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 2695.09
If we take 576 away from 600, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
64 can be fit into 240 3 times, resulting in a remainder of 48.
Use 3 as the next digit of our solution. 
Result so far: 2695.093
The remainder is 48 after subtracting 192 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 10:
480 divided by 64 is 7 with a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 2695.0937
Subtract 448 from 480 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 11:
If we divide 320 by 64, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 2695.09375
Deduct 320 from 320 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.

Going ahead to step 12:
If we divide 0 by 64, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2695.09375
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 13:
64 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: 2695.09375
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.

The final result is 2695.09375 with a remainder of 0.0.