We look at the division of 172618 by 89 
Let's see how many times 89 fits into 172618.

Advancing to step 1:
When dividing 1 by 89, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 89

Advancing to step 2:
17 divided by 89 is 0 with a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 89

Let's proceed to step 3:
If we divide 172 by 89, we get 1 and a remainder of 83.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 89 from 172 to get 83.
Bring next digit (6) of the dividend behind the 83 and repeat the process: 836 / 89

On to step 4:
If we divide 836 by 89, we get 9 and a remainder of 35.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
The remainder is 35 after subtracting 801 from 836.
Take the next digit (1) from the dividend and append it to 35, then repeat: 351 / 89

Moving on to step 5:
89 goes into 351 3 times with a remainder of 84.
The next digit of our result is 3. 
Result so far: 193.0
The remainder is 84 after subtracting 267 from 351.
Fetch the next digit (8) from the dividend, attach it to 84 and continue: 848 / 89

Going ahead to step 6:
If we divide 848 by 89, we get 9 and a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 1939.0
The remainder is 47 after subtracting 801 from 848.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 7:
The number 89 fits into 470 5 times, leaving a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 1939.5
Deduct 445 from 470 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 8:
If we divide 250 by 89, we get 2 and a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 1939.52
If we take 178 away from 250, 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.

On to step 9:
720 divided by 89 is 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 1939.528
If we take 712 away from 720, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
80 divided by 89 is 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 1939.528
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 11:
The number 89 fits into 800 8 times, leaving a remainder of 88.
Record the quotient 8 as the next digit in the result. 
Result so far: 1939.52808
Deduct 712 from 800 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 12:
89 can be fit into 880 9 times, resulting in a remainder of 79.
The next digit of our result is 9. 
Result so far: 1939.528089
The remainder is 79 after subtracting 801 from 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 13:
If we divide 790 by 89, we get 8 and a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 1939.5280898
Subtract 712 from 790 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 14:
When dividing 780 by 89, we get 8 with a remainder of 68.
The next digit of our result is 8. 
Result so far: 1939.52808988
Subtract 712 from 780 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.

The final result is 1939.52808988 with a remainder of 6.8e-08.