53128457 ÷ 513 
We're looking to find how many times 513 goes into 53128457.

Moving on to step 1:
5 divided by 513 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 513

Moving on to step 2:
513 goes into 53 0 times with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Take the next digit (1) from the dividend and append it to 53, then repeat: 531 / 513

Step 3:
513 can be fit into 531 1 times, resulting in a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 513 from 531, we get 18.
Fetch the next digit (2) from the dividend, attach it to 18 and continue: 182 / 513

Step 4:
The number 513 fits into 182 0 times, leaving a remainder of 182.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 182 to get 182.
Include the next digit (8) from the dividend after 182, then repeat: 1828 / 513

Advancing to step 5:
When dividing 1828 by 513, we get 3 with a remainder of 289.
Put 3 as the next digit of the answer. 
Result so far: 103.0
If we take 1539 away from 1828, we end up with 289.
Bring next digit (4) of the dividend behind the 289 and repeat the process: 2894 / 513

Going ahead to step 6:
513 goes into 2894 5 times with a remainder of 329.
Write down 5 as next digit of the result. 
Result so far: 1035.0
If we subtract 2565 from 2894, we get 329.
Bring next digit (5) of the dividend behind the 329 and repeat the process: 3295 / 513

Step 7:
When dividing 3295 by 513, we get 6 with a remainder of 217.
Use 6 as the next digit of our solution. 
Result so far: 10356.0
The remainder is 217 after subtracting 3078 from 3295.
Fetch the next digit (7) from the dividend, attach it to 217 and continue: 2177 / 513

Going ahead to step 8:
When dividing 2177 by 513, we get 4 with a remainder of 125.
Use 4 as the next digit of our solution. 
Result so far: 103564.0
Subtract 2052 from 2177 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 9:
When dividing 1250 by 513, we get 2 with a remainder of 224.
Record the quotient 2 as the next digit in the result. 
Result so far: 103564.2
The remainder is 224 after subtracting 1026 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Moving on to step 10:
513 goes into 2240 4 times with a remainder of 188.
Put 4 as the next digit of the answer. 
Result so far: 103564.24
If we take 2052 away from 2240, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Going ahead to step 11:
If we divide 1880 by 513, we get 3 and a remainder of 341.
The next digit of our result is 3. 
Result so far: 103564.243
If we take 1539 away from 1880, we end up with 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Going ahead to step 12:
If we divide 3410 by 513, we get 6 and a remainder of 332.
The next digit of our result is 6. 
Result so far: 103564.2436
Subtract 3078 from 3410 to get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Advancing to step 13:
The number 513 fits into 3320 6 times, leaving a remainder of 242.
The next digit of our result is 6. 
Result so far: 103564.24366
If we subtract 3078 from 3320, we get 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

The final result is 103564.24366 with a remainder of 0.000242.