We look at the division of 77515250 by 513 
Let's see how many times 513 fits into 77515250.

Step 1:
If we divide 7 by 513, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 513

Moving on to step 2:
The number 513 fits into 77 0 times, leaving a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Fetch the next digit (5) from the dividend, attach it to 77 and continue: 775 / 513

Going ahead to step 3:
When dividing 775 by 513, we get 1 with a remainder of 262.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 262 after subtracting 513 from 775.
Fetch the next digit (1) from the dividend, attach it to 262 and continue: 2621 / 513

Advancing to step 4:
If we divide 2621 by 513, we get 5 and a remainder of 56.
The next digit of our result is 5. 
Result so far: 15.0
Subtracting 2565 from 2621 leaves us with 56.
Include the next digit (5) from the dividend after 56, then repeat: 565 / 513

Moving on to step 5:
513 can be fit into 565 1 times, resulting in a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 151.0
The remainder is 52 after subtracting 513 from 565.
Take the next digit (2) from the dividend and append it to 52, then repeat: 522 / 513

Advancing to step 6:
513 goes into 522 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 1511.0
Subtract 513 from 522 to get 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 513

Going ahead to step 7:
513 goes into 95 0 times with a remainder of 95.
Use 0 as the next digit of our solution. 
Result so far: 15110.0
Subtracting 0 from 95 leaves us with 95.
Fetch the next digit (0) from the dividend, attach it to 95 and continue: 950 / 513

Going ahead to step 8:
If we divide 950 by 513, we get 1 and a remainder of 437.
Put 1 as the next digit of the answer. 
Result so far: 151101.0
If we take 513 away from 950, we end up with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

On to step 9:
513 goes into 4370 8 times with a remainder of 266.
Record the quotient 8 as the next digit in the result. 
Result so far: 151101.8
Subtracting 4104 from 4370 leaves us with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Let's proceed to step 10:
2660 divided by 513 is 5 with a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 151101.85
The remainder is 95 after subtracting 2565 from 2660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 11:
If we divide 950 by 513, we get 1 and a remainder of 437.
The next digit of our result is 1. 
Result so far: 151101.851
Subtract 513 from 950 to get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

On to step 12:
513 goes into 4370 8 times with a remainder of 266.
Use 8 as the next digit of our solution. 
Result so far: 151101.8518
The remainder is 266 after subtracting 4104 from 4370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 13:
513 goes into 2660 5 times with a remainder of 95.
The next digit of our result is 5. 
Result so far: 151101.85185
Deduct 2565 from 2660 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 14:
When dividing 950 by 513, we get 1 with a remainder of 437.
Use 1 as the next digit of our solution. 
Result so far: 151101.851851
If we subtract 513 from 950, we get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Let's proceed to step 15:
513 goes into 4370 8 times with a remainder of 266.
Put 8 as the next digit of the answer. 
Result so far: 151101.8518518
If we subtract 4104 from 4370, we get 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 16:
513 goes into 2660 5 times with a remainder of 95.
Put 5 as the next digit of the answer. 
Result so far: 151101.85185185
If we subtract 2565 from 2660, we get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

The final outcome is 151101.85185185, with a leftover of 9.5e-08.