Let's divide 81401160 by 320
The aim is to understand the frequency of 320 in 81401160.

Step 1:
If we divide 8 by 320, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 320

On to step 2:
81 divided by 320 is 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Append the next digit (4) from the dividend to 81 and continue with: 814 / 320

Advancing to step 3:
320 can be fit into 814 2 times, resulting in a remainder of 174.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 174 after subtracting 640 from 814.
Bring next digit (0) of the dividend behind the 174 and repeat the process: 1740 / 320

Moving on to step 4:
320 goes into 1740 5 times with a remainder of 140.
Write down 5 as next digit of the result. 
Result so far: 25.0
Deduct 1600 from 1740 and we're left with 140.
Fetch the next digit (1) from the dividend, attach it to 140 and continue: 1401 / 320

Advancing to step 5:
The number 320 fits into 1401 4 times, leaving a remainder of 121.
Put 4 as the next digit of the answer. 
Result so far: 254.0
Deduct 1280 from 1401 and we're left with 121.
Grab the next digit (1) from the dividend, add it to 121, then carry on: 1211 / 320

On to step 6:
If we divide 1211 by 320, we get 3 and a remainder of 251.
Put 3 as the next digit of the answer. 
Result so far: 2543.0
If we subtract 960 from 1211, we get 251.
Include the next digit (6) from the dividend after 251, then repeat: 2516 / 320

Going ahead to step 7:
320 can be fit into 2516 7 times, resulting in a remainder of 276.
Write down 7 as next digit of the result. 
Result so far: 25437.0
The remainder is 276 after subtracting 2240 from 2516.
Include the next digit (0) from the dividend after 276, then repeat: 2760 / 320

On to step 8:
320 goes into 2760 8 times with a remainder of 200.
The number 8 becomes the next digit in our result. 
Result so far: 254378.0
The remainder is 200 after subtracting 2560 from 2760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 9:
320 can be fit into 2000 6 times, resulting in a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 254378.6
If we take 1920 away from 2000, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 10:
If we divide 800 by 320, we get 2 and a remainder of 160.
Use 2 as the next digit of our solution. 
Result so far: 254378.62
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.

On to step 11:
1600 divided by 320 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 254378.625
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.

Advancing to step 12:
The number 320 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 254378.625
Subtract 0 from 0 to 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.

Advancing to step 13:
320 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 254378.625
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.

After the division, we end up with 254378.625 and a remainder of 0.0.