We look at the division of 77087 by 12 
We want to divide 77087 by 12.

Moving on to step 1:
12 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 12

On to step 2:
77 divided by 12 is 6 with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 72 from 77 leaves us with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 12

On to step 3:
The number 12 fits into 50 4 times, leaving a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
If we take 48 away from 50, we end up with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 12

Advancing to step 4:
When dividing 28 by 12, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 642.0
Subtract 24 from 28 to get 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 12

Advancing to step 5:
12 can be fit into 47 3 times, resulting in a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 6423.0
Deduct 36 from 47 and we're left 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.

Let's proceed to step 6:
When dividing 110 by 12, we get 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 6423.9
If we take 108 away from 110, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
12 can be fit into 20 1 times, resulting in a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 6423.91
Subtracting 12 from 20 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
12 goes into 80 6 times with a remainder of 8.
The next digit of our result is 6. 
Result so far: 6423.916
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
12 goes into 80 6 times with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 6423.9166
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 6423.9166, with a leftover of 8e-05.