We're dividing 78018451 by 2 
Let's see how many times 2 fits into 78018451.

Going ahead to step 1:
If we divide 7 by 2, we get 3 and a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 6 away from 7, we end up with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 2

Going ahead to step 2:
The number 2 fits into 18 9 times, leaving a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 39.0
Deduct 18 from 18 and we're left with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 2

Going ahead to step 3:
0 divided by 2 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 390.0
Subtracting 0 from 0 leaves us with 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 2

Step 4:
If we divide 1 by 2, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 3900.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 2

Going ahead to step 5:
When dividing 18 by 2, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 39009.0
If we subtract 18 from 18, we get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 2

Advancing to step 6:
2 can be fit into 4 2 times, resulting in a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 390092.0
If we take 4 away from 4, we end up with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 2

Let's proceed to step 7:
5 divided by 2 is 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 3900922.0
Subtracting 4 from 5 leaves us with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 2

On to step 8:
If we divide 11 by 2, we get 5 and a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 39009225.0
Deduct 10 from 11 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
If we divide 10 by 2, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 39009225.5
Deduct 10 from 10 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.

Let's proceed to step 10:
If we divide 0 by 2, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39009225.5
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.

Advancing to step 11:
2 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 39009225.5
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.

The final result is 39009225.5 with a remainder of 0.0.