57509306 ÷ 389 
We want to figure out the number of times 57509306 can be divided by 389.

Step 1:
If we divide 5 by 389, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 389

Let's proceed to step 2:
57 divided by 389 is 0 with a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Fetch the next digit (5) from the dividend, attach it to 57 and continue: 575 / 389

On to step 3:
If we divide 575 by 389, we get 1 and a remainder of 186.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 389 from 575 leaves us with 186.
Include the next digit (0) from the dividend after 186, then repeat: 1860 / 389

Advancing to step 4:
1860 divided by 389 is 4 with a remainder of 304.
Write down 4 as next digit of the result. 
Result so far: 14.0
Deduct 1556 from 1860 and we're left with 304.
Bring next digit (9) of the dividend behind the 304 and repeat the process: 3049 / 389

Step 5:
When dividing 3049 by 389, we get 7 with a remainder of 326.
Use 7 as the next digit of our solution. 
Result so far: 147.0
Subtracting 2723 from 3049 leaves us with 326.
Bring next digit (3) of the dividend behind the 326 and repeat the process: 3263 / 389

On to step 6:
3263 divided by 389 is 8 with a remainder of 151.
Write down 8 as next digit of the result. 
Result so far: 1478.0
If we take 3112 away from 3263, we end up with 151.
Bring next digit (0) of the dividend behind the 151 and repeat the process: 1510 / 389

On to step 7:
The number 389 fits into 1510 3 times, leaving a remainder of 343.
The next digit of our result is 3. 
Result so far: 14783.0
If we subtract 1167 from 1510, we get 343.
Take the next digit (6) from the dividend and append it to 343, then repeat: 3436 / 389

On to step 8:
If we divide 3436 by 389, we get 8 and a remainder of 324.
The next digit of our result is 8. 
Result so far: 147838.0
If we take 3112 away from 3436, we end up with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Going ahead to step 9:
The number 389 fits into 3240 8 times, leaving a remainder of 128.
Record the quotient 8 as the next digit in the result. 
Result so far: 147838.8
If we take 3112 away from 3240, we end up with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 10:
1280 divided by 389 is 3 with a remainder of 113.
Record the quotient 3 as the next digit in the result. 
Result so far: 147838.83
The remainder is 113 after subtracting 1167 from 1280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Let's proceed to step 11:
When dividing 1130 by 389, we get 2 with a remainder of 352.
Use 2 as the next digit of our solution. 
Result so far: 147838.832
Subtract 778 from 1130 to get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Step 12:
The number 389 fits into 3520 9 times, leaving a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 147838.8329
The remainder is 19 after subtracting 3501 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 13:
389 can be fit into 190 0 times, resulting in a remainder of 190.
Record the quotient 0 as the next digit in the result. 
Result so far: 147838.8329
The remainder is 190 after subtracting 0 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 14:
If we divide 1900 by 389, we get 4 and a remainder of 344.
The number 4 becomes the next digit in our result. 
Result so far: 147838.832904
Subtracting 1556 from 1900 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Going ahead to step 15:
When dividing 3440 by 389, we get 8 with a remainder of 328.
Record the quotient 8 as the next digit in the result. 
Result so far: 147838.8329048
The remainder is 328 after subtracting 3112 from 3440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 16:
If we divide 3280 by 389, we get 8 and a remainder of 168.
Write down 8 as next digit of the result. 
Result so far: 147838.83290488
Deduct 3112 from 3280 and we're left with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

In conclusion, the division gives 147838.83290488 with a balance of 1.68e-07.