77151069 divided by 520 
We want to divide 77151069 by 520.

Moving on to step 1:
When dividing 7 by 520, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 520

Moving on to step 2:
The number 520 fits into 77 0 times, leaving a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Grab the next digit (1) from the dividend, add it to 77, then carry on: 771 / 520

Going ahead to step 3:
When dividing 771 by 520, we get 1 with a remainder of 251.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 251 after subtracting 520 from 771.
Take the next digit (5) from the dividend and append it to 251, then repeat: 2515 / 520

Advancing to step 4:
2515 divided by 520 is 4 with a remainder of 435.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 2080 from 2515 to get 435.
Bring next digit (1) of the dividend behind the 435 and repeat the process: 4351 / 520

On to step 5:
If we divide 4351 by 520, we get 8 and a remainder of 191.
Use 8 as the next digit of our solution. 
Result so far: 148.0
The remainder is 191 after subtracting 4160 from 4351.
Take the next digit (0) from the dividend and append it to 191, then repeat: 1910 / 520

Let's proceed to step 6:
520 goes into 1910 3 times with a remainder of 350.
Write down 3 as next digit of the result. 
Result so far: 1483.0
Subtracting 1560 from 1910 leaves us with 350.
Append the next digit (6) from the dividend to 350 and continue with: 3506 / 520

Step 7:
520 can be fit into 3506 6 times, resulting in a remainder of 386.
The next digit of our result is 6. 
Result so far: 14836.0
If we subtract 3120 from 3506, we get 386.
Take the next digit (9) from the dividend and append it to 386, then repeat: 3869 / 520

Moving on to step 8:
When dividing 3869 by 520, we get 7 with a remainder of 229.
Record the quotient 7 as the next digit in the result. 
Result so far: 148367.0
If we subtract 3640 from 3869, we get 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

On to step 9:
2290 divided by 520 is 4 with a remainder of 210.
The next digit of our result is 4. 
Result so far: 148367.4
Subtract 2080 from 2290 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 10:
520 goes into 2100 4 times with a remainder of 20.
The next digit of our result is 4. 
Result so far: 148367.44
If we take 2080 away from 2100, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 148367.44 and a remainder of 0.02.