180820 ÷ 86 
We want to figure out the number of times 180820 can be divided by 86.

On to step 1:
86 can be fit into 1 0 times, resulting in 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.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 86

Going ahead to step 2:
When dividing 18 by 86, we get 0 with a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Grab the next digit (0) from the dividend, add it to 18, then carry on: 180 / 86

Let's proceed to step 3:
When dividing 180 by 86, we get 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 172 from 180 and we're left with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 86

Step 4:
If we divide 88 by 86, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 21.0
The remainder is 2 after subtracting 86 from 88.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 86

Let's proceed to step 5:
86 can be fit into 22 0 times, resulting in a remainder of 22.
The number 0 becomes the next digit in our result. 
Result so far: 210.0
Subtracting 0 from 22 leaves us with 22.
Append the next digit (0) from the dividend to 22 and continue with: 220 / 86

Step 6:
The number 86 fits into 220 2 times, leaving a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 2102.0
If we take 172 away from 220, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 7:
The number 86 fits into 480 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 2102.5
Subtracting 430 from 480 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 8:
The number 86 fits into 500 5 times, leaving a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 2102.55
If we subtract 430 from 500, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Our division results in 2102.55 with a remaining 0.07.