We divide 77505019 by 12
We want to figure out the number of times 77505019 can be divided by 12.

Advancing to step 1:
7 divided by 12 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 12

Let's proceed to step 2:
The number 12 fits into 77 6 times, leaving a remainder of 5.
The next digit of our result is 6. 
Result so far: 6.0
If we take 72 away from 77, we end up with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 12

Going ahead to step 3:
When dividing 55 by 12, we get 4 with a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
If we take 48 away from 55, we end up with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 12

Step 4:
12 goes into 70 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 645.0
If we take 60 away from 70, we end up with 10.
Fetch the next digit (5) from the dividend, attach it to 10 and continue: 105 / 12

Going ahead to step 5:
The number 12 fits into 105 8 times, leaving a remainder of 9.
Record the quotient 8 as the next digit in the result. 
Result so far: 6458.0
Subtract 96 from 105 to get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 12

Going ahead to step 6:
12 can be fit into 90 7 times, resulting in a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 64587.0
If we subtract 84 from 90, we get 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 12

Going ahead to step 7:
When dividing 61 by 12, we get 5 with a remainder of 1.
The next digit of our result is 5. 
Result so far: 645875.0
If we take 60 away from 61, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 12

Advancing to step 8:
When dividing 19 by 12, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 6458751.0
The remainder is 7 after subtracting 12 from 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 9:
70 divided by 12 is 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 6458751.5
Deduct 60 from 70 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
100 divided by 12 is 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 6458751.58
Deduct 96 from 100 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
If we divide 40 by 12, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 6458751.583
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 12:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 6458751.5833
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 6458751.5833, with a leftover of 4e-05.