80341743 divided by 321 
The aim is to understand the frequency of 321 in 80341743.

Moving on to step 1:
When dividing 8 by 321, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 321

Let's proceed to step 2:
321 can be fit into 80 0 times, resulting in a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Fetch the next digit (3) from the dividend, attach it to 80 and continue: 803 / 321

Let's proceed to step 3:
The number 321 fits into 803 2 times, leaving a remainder of 161.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 642 from 803 and we're left with 161.
Grab the next digit (4) from the dividend, add it to 161, then carry on: 1614 / 321

Moving on to step 4:
321 goes into 1614 5 times with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
If we take 1605 away from 1614, we end up with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 321

Let's proceed to step 5:
When dividing 91 by 321, we get 0 with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 250.0
If we subtract 0 from 91, we get 91.
Take the next digit (7) from the dividend and append it to 91, then repeat: 917 / 321

On to step 6:
When dividing 917 by 321, we get 2 with a remainder of 275.
Record the quotient 2 as the next digit in the result. 
Result so far: 2502.0
Subtracting 642 from 917 leaves us with 275.
Take the next digit (4) from the dividend and append it to 275, then repeat: 2754 / 321

Let's proceed to step 7:
321 can be fit into 2754 8 times, resulting in a remainder of 186.
The number 8 becomes the next digit in our result. 
Result so far: 25028.0
The remainder is 186 after subtracting 2568 from 2754.
Grab the next digit (3) from the dividend, add it to 186, then carry on: 1863 / 321

Let's proceed to step 8:
321 goes into 1863 5 times with a remainder of 258.
The number 5 becomes the next digit in our result. 
Result so far: 250285.0
The remainder is 258 after subtracting 1605 from 1863.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Let's proceed to step 9:
When dividing 2580 by 321, we get 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 250285.8
If we subtract 2568 from 2580, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 10:
321 goes into 120 0 times with a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 250285.8
The remainder is 120 after subtracting 0 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
321 can be fit into 1200 3 times, resulting in a remainder of 237.
Record the quotient 3 as the next digit in the result. 
Result so far: 250285.803
Subtract 963 from 1200 to get 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Step 12:
321 goes into 2370 7 times with a remainder of 123.
Write down 7 as next digit of the result. 
Result so far: 250285.8037
If we take 2247 away from 2370, we end up with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 13:
1230 divided by 321 is 3 with a remainder of 267.
The next digit of our result is 3. 
Result so far: 250285.80373
Deduct 963 from 1230 and we're left with 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Going ahead to step 14:
When dividing 2670 by 321, we get 8 with a remainder of 102.
Put 8 as the next digit of the answer. 
Result so far: 250285.803738
Subtracting 2568 from 2670 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Let's proceed to step 15:
1020 divided by 321 is 3 with a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 250285.8037383
Deduct 963 from 1020 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 16:
If we divide 570 by 321, we get 1 and a remainder of 249.
Record the quotient 1 as the next digit in the result. 
Result so far: 250285.80373831
Deduct 321 from 570 and we're left with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

The quotient of the division is 250285.80373831, and the remainder is 2.49e-07.