We're dividing 172859 by 77 
We want to divide 172859 by 77.

Let's proceed to step 1:
1 divided by 77 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 77

Moving on to step 2:
17 divided by 77 is 0 with a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Fetch the next digit (2) from the dividend, attach it to 17 and continue: 172 / 77

Step 3:
77 goes into 172 2 times with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 154 from 172 to get 18.
Include the next digit (8) from the dividend after 18, then repeat: 188 / 77

Let's proceed to step 4:
77 goes into 188 2 times with a remainder of 34.
Use 2 as the next digit of our solution. 
Result so far: 22.0
The remainder is 34 after subtracting 154 from 188.
Append the next digit (5) from the dividend to 34 and continue with: 345 / 77

Going ahead to step 5:
When dividing 345 by 77, we get 4 with a remainder of 37.
Use 4 as the next digit of our solution. 
Result so far: 224.0
If we subtract 308 from 345, we get 37.
Append the next digit (9) from the dividend to 37 and continue with: 379 / 77

Going ahead to step 6:
The number 77 fits into 379 4 times, leaving a remainder of 71.
Record the quotient 4 as the next digit in the result. 
Result so far: 2244.0
Deduct 308 from 379 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 7:
77 can be fit into 710 9 times, resulting in a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 2244.9
If we subtract 693 from 710, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 8:
77 can be fit into 170 2 times, resulting in a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 2244.92
Subtract 154 from 170 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
77 goes into 160 2 times with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 2244.922
The remainder is 6 after subtracting 154 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

After the division, we end up with 2244.922 and a remainder of 0.0006.