We're dividing 87553995 by 170 
We want to figure out the number of times 87553995 can be divided by 170.

Let's proceed to step 1:
The number 170 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 170

Moving on to step 2:
The number 170 fits into 87 0 times, leaving a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Include the next digit (5) from the dividend after 87, then repeat: 875 / 170

Let's proceed to step 3:
If we divide 875 by 170, we get 5 and a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 850 from 875 leaves us with 25.
Include the next digit (5) from the dividend after 25, then repeat: 255 / 170

On to step 4:
170 goes into 255 1 times with a remainder of 85.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
Subtracting 170 from 255 leaves us with 85.
Take the next digit (3) from the dividend and append it to 85, then repeat: 853 / 170

Let's proceed to step 5:
853 divided by 170 is 5 with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 515.0
If we subtract 850 from 853, we get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 170

Advancing to step 6:
When dividing 39 by 170, we get 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 5150.0
If we subtract 0 from 39, we get 39.
Fetch the next digit (9) from the dividend, attach it to 39 and continue: 399 / 170

Going ahead to step 7:
399 divided by 170 is 2 with a remainder of 59.
Write down 2 as next digit of the result. 
Result so far: 51502.0
Subtracting 340 from 399 leaves us with 59.
Grab the next digit (5) from the dividend, add it to 59, then carry on: 595 / 170

Going ahead to step 8:
170 can be fit into 595 3 times, resulting in a remainder of 85.
The next digit of our result is 3. 
Result so far: 515023.0
Deduct 510 from 595 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 9:
The number 170 fits into 850 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 515023.5
If we take 850 away from 850, we end up 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.

Let's proceed to step 10:
The number 170 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 515023.5
Deduct 0 from 0 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.

On to step 11:
170 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 515023.5
If we subtract 0 from 0, we 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.

Our division results in 515023.5 with a remaining 0.0.