77911129 ÷ 886 
We want to figure out the number of times 77911129 can be divided by 886.

Step 1:
886 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 886

Going ahead to step 2:
If we divide 77 by 886, we get 0 and a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Bring next digit (9) of the dividend behind the 77 and repeat the process: 779 / 886

Let's proceed to step 3:
The number 886 fits into 779 0 times, leaving a remainder of 779.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 779 leaves us with 779.
Append the next digit (1) from the dividend to 779 and continue with: 7791 / 886

Let's proceed to step 4:
7791 divided by 886 is 8 with a remainder of 703.
The next digit of our result is 8. 
Result so far: 8.0
If we take 7088 away from 7791, we end up with 703.
Include the next digit (1) from the dividend after 703, then repeat: 7031 / 886

Step 5:
When dividing 7031 by 886, we get 7 with a remainder of 829.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we take 6202 away from 7031, we end up with 829.
Bring next digit (1) of the dividend behind the 829 and repeat the process: 8291 / 886

Moving on to step 6:
8291 divided by 886 is 9 with a remainder of 317.
Write down 9 as next digit of the result. 
Result so far: 879.0
If we take 7974 away from 8291, we end up with 317.
Take the next digit (2) from the dividend and append it to 317, then repeat: 3172 / 886

Let's proceed to step 7:
3172 divided by 886 is 3 with a remainder of 514.
Put 3 as the next digit of the answer. 
Result so far: 8793.0
Subtract 2658 from 3172 to get 514.
Append the next digit (9) from the dividend to 514 and continue with: 5149 / 886

Moving on to step 8:
886 goes into 5149 5 times with a remainder of 719.
The next digit of our result is 5. 
Result so far: 87935.0
If we subtract 4430 from 5149, we get 719.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7190, and continue the process.

Moving on to step 9:
886 goes into 7190 8 times with a remainder of 102.
Use 8 as the next digit of our solution. 
Result so far: 87935.8
If we take 7088 away from 7190, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Advancing to step 10:
If we divide 1020 by 886, we get 1 and a remainder of 134.
Write down 1 as next digit of the result. 
Result so far: 87935.81
Subtracting 886 from 1020 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Going ahead to step 11:
The number 886 fits into 1340 1 times, leaving a remainder of 454.
Write down 1 as next digit of the result. 
Result so far: 87935.811
Deduct 886 from 1340 and we're left with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

The final result is 87935.811 with a remainder of 0.0454.