We look at the division of 97891278 by 172 
Our goal is to divide 97891278 by 172.

Going ahead to step 1:
9 divided by 172 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 172

Advancing to step 2:
172 goes into 97 0 times with a remainder of 97.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 97 and we're left with 97.
Grab the next digit (8) from the dividend, add it to 97, then carry on: 978 / 172

On to step 3:
When dividing 978 by 172, we get 5 with a remainder of 118.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 860 from 978 leaves us with 118.
Take the next digit (9) from the dividend and append it to 118, then repeat: 1189 / 172

Advancing to step 4:
When dividing 1189 by 172, we get 6 with a remainder of 157.
Write down 6 as next digit of the result. 
Result so far: 56.0
Deduct 1032 from 1189 and we're left with 157.
Grab the next digit (1) from the dividend, add it to 157, then carry on: 1571 / 172

Step 5:
When dividing 1571 by 172, we get 9 with a remainder of 23.
Put 9 as the next digit of the answer. 
Result so far: 569.0
If we take 1548 away from 1571, we end up with 23.
Bring next digit (2) of the dividend behind the 23 and repeat the process: 232 / 172

On to step 6:
172 can be fit into 232 1 times, resulting in a remainder of 60.
Record the quotient 1 as the next digit in the result. 
Result so far: 5691.0
If we subtract 172 from 232, we get 60.
Grab the next digit (7) from the dividend, add it to 60, then carry on: 607 / 172

Step 7:
607 divided by 172 is 3 with a remainder of 91.
Write down 3 as next digit of the result. 
Result so far: 56913.0
Subtracting 516 from 607 leaves us with 91.
Take the next digit (8) from the dividend and append it to 91, then repeat: 918 / 172

Going ahead to step 8:
When dividing 918 by 172, we get 5 with a remainder of 58.
Record the quotient 5 as the next digit in the result. 
Result so far: 569135.0
The remainder is 58 after subtracting 860 from 918.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
580 divided by 172 is 3 with a remainder of 64.
The next digit of our result is 3. 
Result so far: 569135.3
The remainder is 64 after subtracting 516 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 10:
172 can be fit into 640 3 times, resulting in a remainder of 124.
Record the quotient 3 as the next digit in the result. 
Result so far: 569135.33
The remainder is 124 after subtracting 516 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

The final outcome is 569135.33, with a leftover of 0.124.