Let's divide 77986104 by 7
We want to divide 77986104 by 7.

Let's proceed to step 1:
The number 7 fits into 7 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 7 from 7 leaves us with 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 7

Let's proceed to step 2:
7 goes into 7 1 times with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 7 from 7 leaves us with 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 7

Step 3:
If we divide 9 by 7, we get 1 and a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 111.0
Deduct 7 from 9 and we're left with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 7

Advancing to step 4:
28 divided by 7 is 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 1114.0
Deduct 28 from 28 and we're left with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 7

Moving on to step 5:
When dividing 6 by 7, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 11140.0
If we subtract 0 from 6, we get 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 7

Step 6:
7 goes into 61 8 times with a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 111408.0
Subtract 56 from 61 to get 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 7

Let's proceed to step 7:
When dividing 50 by 7, we get 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 1114087.0
Subtracting 49 from 50 leaves us with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 7

Going ahead to step 8:
14 divided by 7 is 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 11140872.0
If we subtract 14 from 14, 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 9:
7 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 11140872.0
If we take 0 away from 0, 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.

Moving on to step 10:
7 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 11140872.0
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.

The final result is 11140872.0 with a remainder of 0.0.