We divide 77991011 by 512
We're looking to find how many times 512 goes into 77991011.

On to step 1:
When dividing 7 by 512, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 512

Let's proceed to step 2:
512 can be fit into 77 0 times, resulting in a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Grab the next digit (9) from the dividend, add it to 77, then carry on: 779 / 512

On to step 3:
512 goes into 779 1 times with a remainder of 267.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 512 from 779 to get 267.
Grab the next digit (9) from the dividend, add it to 267, then carry on: 2679 / 512

Moving on to step 4:
If we divide 2679 by 512, we get 5 and a remainder of 119.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we subtract 2560 from 2679, we get 119.
Bring next digit (1) of the dividend behind the 119 and repeat the process: 1191 / 512

Going ahead to step 5:
If we divide 1191 by 512, we get 2 and a remainder of 167.
The next digit of our result is 2. 
Result so far: 152.0
The remainder is 167 after subtracting 1024 from 1191.
Append the next digit (0) from the dividend to 167 and continue with: 1670 / 512

Advancing to step 6:
512 goes into 1670 3 times with a remainder of 134.
The number 3 becomes the next digit in our result. 
Result so far: 1523.0
If we subtract 1536 from 1670, we get 134.
Grab the next digit (1) from the dividend, add it to 134, then carry on: 1341 / 512

Let's proceed to step 7:
If we divide 1341 by 512, we get 2 and a remainder of 317.
The next digit of our result is 2. 
Result so far: 15232.0
The remainder is 317 after subtracting 1024 from 1341.
Take the next digit (1) from the dividend and append it to 317, then repeat: 3171 / 512

Step 8:
When dividing 3171 by 512, we get 6 with a remainder of 99.
The next digit of our result is 6. 
Result so far: 152326.0
Subtracting 3072 from 3171 leaves us with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Moving on to step 9:
512 can be fit into 990 1 times, resulting in a remainder of 478.
Write down 1 as next digit of the result. 
Result so far: 152326.1
The remainder is 478 after subtracting 512 from 990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Moving on to step 10:
512 can be fit into 4780 9 times, resulting in a remainder of 172.
Record the quotient 9 as the next digit in the result. 
Result so far: 152326.19
If we take 4608 away from 4780, we end up with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

On to step 11:
When dividing 1720 by 512, we get 3 with a remainder of 184.
Put 3 as the next digit of the answer. 
Result so far: 152326.193
If we take 1536 away from 1720, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 12:
1840 divided by 512 is 3 with a remainder of 304.
The next digit of our result is 3. 
Result so far: 152326.1933
If we take 1536 away from 1840, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Our division results in 152326.1933 with a remaining 0.00304.