356146 ÷ 80 
The aim is to understand the frequency of 80 in 356146.

Advancing to step 1:
The number 80 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 80

Moving on to step 2:
The number 80 fits into 35 0 times, leaving a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 35, we get 35.
Bring next digit (6) of the dividend behind the 35 and repeat the process: 356 / 80

On to step 3:
356 divided by 80 is 4 with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 36 after subtracting 320 from 356.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 80

Let's proceed to step 4:
If we divide 361 by 80, we get 4 and a remainder of 41.
The next digit of our result is 4. 
Result so far: 44.0
Subtracting 320 from 361 leaves us with 41.
Take the next digit (4) from the dividend and append it to 41, then repeat: 414 / 80

On to step 5:
If we divide 414 by 80, we get 5 and a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 445.0
Deduct 400 from 414 and we're left with 14.
Bring next digit (6) of the dividend behind the 14 and repeat the process: 146 / 80

Advancing to step 6:
When dividing 146 by 80, we get 1 with a remainder of 66.
Use 1 as the next digit of our solution. 
Result so far: 4451.0
If we subtract 80 from 146, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 7:
80 can be fit into 660 8 times, resulting in a remainder of 20.
The next digit of our result is 8. 
Result so far: 4451.8
Deduct 640 from 660 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 4451.82
If we take 160 away from 200, we end up 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.

Going ahead to step 9:
When dividing 400 by 80, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 4451.825
Subtracting 400 from 400 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.

Step 10:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 4451.825
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 11:
If we divide 0 by 80, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4451.825
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 4451.825 with a remainder of 0.0.