78599 ÷ 18 
We're looking to find how many times 18 goes into 78599.

On to step 1:
18 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 18

On to step 2:
18 goes into 78 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 6 after subtracting 72 from 78.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 18

Step 3:
18 can be fit into 65 3 times, resulting in a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 43.0
If we take 54 away from 65, we end up with 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 18

Going ahead to step 4:
The number 18 fits into 119 6 times, leaving a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 436.0
Deduct 108 from 119 and we're left with 11.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 18

Going ahead to step 5:
18 goes into 119 6 times with a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 4366.0
Subtracting 108 from 119 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 6:
110 divided by 18 is 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 4366.6
The remainder is 2 after subtracting 108 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
When dividing 20 by 18, we get 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 4366.61
If we subtract 18 from 20, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
18 can be fit into 20 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 4366.611
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 4366.611 and a remainder of 0.0002.