We look at the division of 80438491 by 320 
We're looking to find how many times 320 goes into 80438491.

Advancing to step 1:
The number 320 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 320

Going ahead to step 2:
The number 320 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Take the next digit (4) from the dividend and append it to 80, then repeat: 804 / 320

Let's proceed to step 3:
When dividing 804 by 320, we get 2 with a remainder of 164.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 640 from 804, we get 164.
Include the next digit (3) from the dividend after 164, then repeat: 1643 / 320

Moving on to step 4:
When dividing 1643 by 320, we get 5 with a remainder of 43.
The next digit of our result is 5. 
Result so far: 25.0
Subtracting 1600 from 1643 leaves us with 43.
Bring next digit (8) of the dividend behind the 43 and repeat the process: 438 / 320

Let's proceed to step 5:
If we divide 438 by 320, we get 1 and a remainder of 118.
Use 1 as the next digit of our solution. 
Result so far: 251.0
If we take 320 away from 438, we end up with 118.
Bring next digit (4) of the dividend behind the 118 and repeat the process: 1184 / 320

Advancing to step 6:
1184 divided by 320 is 3 with a remainder of 224.
Record the quotient 3 as the next digit in the result. 
Result so far: 2513.0
If we subtract 960 from 1184, we get 224.
Include the next digit (9) from the dividend after 224, then repeat: 2249 / 320

Going ahead to step 7:
2249 divided by 320 is 7 with a remainder of 9.
The next digit of our result is 7. 
Result so far: 25137.0
Subtract 2240 from 2249 to get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 320

Going ahead to step 8:
320 goes into 91 0 times with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 251370.0
Subtracting 0 from 91 leaves us with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 9:
When dividing 910 by 320, we get 2 with a remainder of 270.
The next digit of our result is 2. 
Result so far: 251370.2
If we take 640 away from 910, we end up with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Moving on to step 10:
2700 divided by 320 is 8 with a remainder of 140.
Use 8 as the next digit of our solution. 
Result so far: 251370.28
Subtract 2560 from 2700 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 11:
When dividing 1400 by 320, we get 4 with a remainder of 120.
Write down 4 as next digit of the result. 
Result so far: 251370.284
The remainder is 120 after subtracting 1280 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 12:
If we divide 1200 by 320, we get 3 and a remainder of 240.
Write down 3 as next digit of the result. 
Result so far: 251370.2843
Deduct 960 from 1200 and we're left 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.

Advancing to step 13:
If we divide 2400 by 320, we get 7 and a remainder of 160.
Write down 7 as next digit of the result. 
Result so far: 251370.28437
If we take 2240 away from 2400, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 14:
The number 320 fits into 1600 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 251370.284375
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.

Let's proceed to step 15:
0 divided by 320 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 251370.284375
Deduct 0 from 0 and we're left 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.

On to step 16:
0 divided by 320 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 251370.284375
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.

In conclusion, the division gives 251370.284375 with a balance of 0.0.