78176399 divided by 7 
Let's see how many times 7 fits into 78176399.

Advancing to step 1:
7 can be fit into 7 1 times, resulting in a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 7 from 7 to get 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 7

Advancing to step 2:
The number 7 fits into 8 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtracting 7 from 8 leaves us with 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 7

Going ahead to step 3:
The number 7 fits into 11 1 times, leaving a remainder of 4.
The next digit of our result is 1. 
Result so far: 111.0
Deduct 7 from 11 and we're left with 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 7

Step 4:
47 divided by 7 is 6 with a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 1116.0
If we subtract 42 from 47, we get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 7

Moving on to step 5:
7 can be fit into 56 8 times, resulting in a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 11168.0
Subtract 56 from 56 to get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 7

Advancing to step 6:
When dividing 3 by 7, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 111680.0
If we subtract 0 from 3, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 7

Going ahead to step 7:
39 divided by 7 is 5 with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 1116805.0
Subtracting 35 from 39 leaves us with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 7

Step 8:
7 can be fit into 49 7 times, resulting in a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 11168057.0
Subtracting 49 from 49 leaves us 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.

Step 9:
7 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11168057.0
Subtract 0 from 0 to 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.

Moving on to step 10:
When dividing 0 by 7, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11168057.0
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.

After the division, we end up with 11168057.0 and a remainder of 0.0.