We're dividing 48910890 by 320 
We want to figure out the number of times 48910890 can be divided by 320.

Let's proceed to step 1:
320 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 320

On to step 2:
320 can be fit into 48 0 times, resulting in a remainder of 48.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 48 after subtracting 0 from 48.
Take the next digit (9) from the dividend and append it to 48, then repeat: 489 / 320

Let's proceed to step 3:
320 can be fit into 489 1 times, resulting in a remainder of 169.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 169 after subtracting 320 from 489.
Include the next digit (1) from the dividend after 169, then repeat: 1691 / 320

Going ahead to step 4:
320 can be fit into 1691 5 times, resulting in a remainder of 91.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtracting 1600 from 1691 leaves us with 91.
Take the next digit (0) from the dividend and append it to 91, then repeat: 910 / 320

Going ahead to step 5:
910 divided by 320 is 2 with a remainder of 270.
Use 2 as the next digit of our solution. 
Result so far: 152.0
Subtract 640 from 910 to get 270.
Append the next digit (8) from the dividend to 270 and continue with: 2708 / 320

Let's proceed to step 6:
320 goes into 2708 8 times with a remainder of 148.
Put 8 as the next digit of the answer. 
Result so far: 1528.0
If we subtract 2560 from 2708, we get 148.
Take the next digit (9) from the dividend and append it to 148, then repeat: 1489 / 320

Advancing to step 7:
1489 divided by 320 is 4 with a remainder of 209.
The number 4 becomes the next digit in our result. 
Result so far: 15284.0
Subtract 1280 from 1489 to get 209.
Append the next digit (0) from the dividend to 209 and continue with: 2090 / 320

Let's proceed to step 8:
When dividing 2090 by 320, we get 6 with a remainder of 170.
Write down 6 as next digit of the result. 
Result so far: 152846.0
Deduct 1920 from 2090 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 9:
The number 320 fits into 1700 5 times, leaving a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 152846.5
Deduct 1600 from 1700 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.

Let's proceed to step 10:
When dividing 1000 by 320, we get 3 with a remainder of 40.
The number 3 becomes the next digit in our result. 
Result so far: 152846.53
Deduct 960 from 1000 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
When dividing 400 by 320, we get 1 with a remainder of 80.
Put 1 as the next digit of the answer. 
Result so far: 152846.531
Subtract 320 from 400 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 12:
320 can be fit into 800 2 times, resulting in a remainder of 160.
The next digit of our result is 2. 
Result so far: 152846.5312
Subtract 640 from 800 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 13:
1600 divided by 320 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 152846.53125
The remainder is 0 after subtracting 1600 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 14:
320 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 152846.53125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 15:
320 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 152846.53125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 152846.53125 with a remainder of 0.0.