45348457 ÷ 309 
We're looking to find how many times 309 goes into 45348457.

Advancing to step 1:
4 divided by 309 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 309

Let's proceed to step 2:
When dividing 45 by 309, we get 0 with a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Include the next digit (3) from the dividend after 45, then repeat: 453 / 309

On to step 3:
If we divide 453 by 309, we get 1 and a remainder of 144.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 144 after subtracting 309 from 453.
Take the next digit (4) from the dividend and append it to 144, then repeat: 1444 / 309

Advancing to step 4:
If we divide 1444 by 309, we get 4 and a remainder of 208.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we take 1236 away from 1444, we end up with 208.
Take the next digit (8) from the dividend and append it to 208, then repeat: 2088 / 309

Moving on to step 5:
2088 divided by 309 is 6 with a remainder of 234.
Put 6 as the next digit of the answer. 
Result so far: 146.0
If we take 1854 away from 2088, we end up with 234.
Fetch the next digit (4) from the dividend, attach it to 234 and continue: 2344 / 309

Going ahead to step 6:
309 goes into 2344 7 times with a remainder of 181.
Record the quotient 7 as the next digit in the result. 
Result so far: 1467.0
Subtract 2163 from 2344 to get 181.
Append the next digit (5) from the dividend to 181 and continue with: 1815 / 309

Step 7:
If we divide 1815 by 309, we get 5 and a remainder of 270.
Use 5 as the next digit of our solution. 
Result so far: 14675.0
Subtract 1545 from 1815 to get 270.
Bring next digit (7) of the dividend behind the 270 and repeat the process: 2707 / 309

Going ahead to step 8:
The number 309 fits into 2707 8 times, leaving a remainder of 235.
Use 8 as the next digit of our solution. 
Result so far: 146758.0
Deduct 2472 from 2707 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

On to step 9:
309 can be fit into 2350 7 times, resulting in a remainder of 187.
Put 7 as the next digit of the answer. 
Result so far: 146758.7
If we take 2163 away from 2350, we end up with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Let's proceed to step 10:
When dividing 1870 by 309, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 146758.76
If we subtract 1854 from 1870, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
The number 309 fits into 160 0 times, leaving a remainder of 160.
The next digit of our result is 0. 
Result so far: 146758.76
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 12:
The number 309 fits into 1600 5 times, leaving a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 146758.7605
If we take 1545 away from 1600, 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.

Going ahead to step 13:
309 goes into 550 1 times with a remainder of 241.
The next digit of our result is 1. 
Result so far: 146758.76051
Subtracting 309 from 550 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Let's proceed to step 14:
309 can be fit into 2410 7 times, resulting in a remainder of 247.
The number 7 becomes the next digit in our result. 
Result so far: 146758.760517
Deduct 2163 from 2410 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Step 15:
309 goes into 2470 7 times with a remainder of 307.
The number 7 becomes the next digit in our result. 
Result so far: 146758.7605177
Deduct 2163 from 2470 and we're left with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

In conclusion, the division gives 146758.7605177 with a balance of 3.07e-06.