We're dividing 155370 by 85 
We're looking to find how many times 85 goes into 155370.

Step 1:
The number 85 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 85

Let's proceed to step 2:
The number 85 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 85

Let's proceed to step 3:
155 divided by 85 is 1 with a remainder of 70.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 85 from 155 and we're left with 70.
Append the next digit (3) from the dividend to 70 and continue with: 703 / 85

Let's proceed to step 4:
85 goes into 703 8 times with a remainder of 23.
The next digit of our result is 8. 
Result so far: 18.0
Deduct 680 from 703 and we're left with 23.
Take the next digit (7) from the dividend and append it to 23, then repeat: 237 / 85

Going ahead to step 5:
The number 85 fits into 237 2 times, leaving a remainder of 67.
The number 2 becomes the next digit in our result. 
Result so far: 182.0
Subtracting 170 from 237 leaves us with 67.
Take the next digit (0) from the dividend and append it to 67, then repeat: 670 / 85

Going ahead to step 6:
If we divide 670 by 85, we get 7 and a remainder of 75.
Write down 7 as next digit of the result. 
Result so far: 1827.0
Subtracting 595 from 670 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 7:
When dividing 750 by 85, we get 8 with a remainder of 70.
The number 8 becomes the next digit in our result. 
Result so far: 1827.8
The remainder is 70 after subtracting 680 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 8:
85 can be fit into 700 8 times, resulting in a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 1827.88
If we take 680 away from 700, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 1827.88, with a leftover of 0.02.