52139765 ÷ 305 
Let's see how many times 305 fits into 52139765.

Advancing to step 1:
305 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 305

On to step 2:
305 goes into 52 0 times with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Append the next digit (1) from the dividend to 52 and continue with: 521 / 305

Step 3:
If we divide 521 by 305, we get 1 and a remainder of 216.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 305 from 521 to get 216.
Append the next digit (3) from the dividend to 216 and continue with: 2163 / 305

Going ahead to step 4:
The number 305 fits into 2163 7 times, leaving a remainder of 28.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 28 after subtracting 2135 from 2163.
Bring next digit (9) of the dividend behind the 28 and repeat the process: 289 / 305

Let's proceed to step 5:
When dividing 289 by 305, we get 0 with a remainder of 289.
Write down 0 as next digit of the result. 
Result so far: 170.0
If we take 0 away from 289, we end up with 289.
Include the next digit (7) from the dividend after 289, then repeat: 2897 / 305

Going ahead to step 6:
305 goes into 2897 9 times with a remainder of 152.
Write down 9 as next digit of the result. 
Result so far: 1709.0
Subtract 2745 from 2897 to get 152.
Grab the next digit (6) from the dividend, add it to 152, then carry on: 1526 / 305

Moving on to step 7:
305 can be fit into 1526 5 times, resulting in a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 17095.0
If we take 1525 away from 1526, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 305

Let's proceed to step 8:
15 divided by 305 is 0 with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 170950.0
If we subtract 0 from 15, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
If we divide 150 by 305, we get 0 and a remainder of 150.
The number 0 becomes the next digit in our result. 
Result so far: 170950.0
Subtracting 0 from 150 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 10:
305 goes into 1500 4 times with a remainder of 280.
Put 4 as the next digit of the answer. 
Result so far: 170950.04
Subtracting 1220 from 1500 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 11:
305 goes into 2800 9 times with a remainder of 55.
Use 9 as the next digit of our solution. 
Result so far: 170950.049
If we take 2745 away from 2800, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 12:
When dividing 550 by 305, we get 1 with a remainder of 245.
Put 1 as the next digit of the answer. 
Result so far: 170950.0491
If we subtract 305 from 550, we get 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Moving on to step 13:
2450 divided by 305 is 8 with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 170950.04918
If we subtract 2440 from 2450, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
The number 305 fits into 100 0 times, leaving a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 170950.04918
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 15:
305 can be fit into 1000 3 times, resulting in a remainder of 85.
The number 3 becomes the next digit in our result. 
Result so far: 170950.0491803
If we subtract 915 from 1000, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 16:
850 divided by 305 is 2 with a remainder of 240.
Use 2 as the next digit of our solution. 
Result so far: 170950.04918032
If we take 610 away from 850, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

In conclusion, the division gives 170950.04918032 with a balance of 2.4e-07.