67081671 ÷ 28 
The aim is to understand the frequency of 28 in 67081671.

Advancing to step 1:
28 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 28

Moving on to step 2:
28 can be fit into 67 2 times, resulting in a remainder of 11.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 56 from 67 to get 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 28

Moving on to step 3:
28 can be fit into 110 3 times, resulting in a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Deduct 84 from 110 and we're left with 26.
Grab the next digit (8) from the dividend, add it to 26, then carry on: 268 / 28

Let's proceed to step 4:
28 can be fit into 268 9 times, resulting in a remainder of 16.
The next digit of our result is 9. 
Result so far: 239.0
If we take 252 away from 268, we end up with 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 28

Going ahead to step 5:
When dividing 161 by 28, we get 5 with a remainder of 21.
Put 5 as the next digit of the answer. 
Result so far: 2395.0
If we subtract 140 from 161, we get 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 28

Moving on to step 6:
If we divide 216 by 28, we get 7 and a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 23957.0
Subtracting 196 from 216 leaves us with 20.
Append the next digit (7) from the dividend to 20 and continue with: 207 / 28

Going ahead to step 7:
The number 28 fits into 207 7 times, leaving a remainder of 11.
The next digit of our result is 7. 
Result so far: 239577.0
Subtracting 196 from 207 leaves us with 11.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 28

On to step 8:
If we divide 111 by 28, we get 3 and a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 2395773.0
The remainder is 27 after subtracting 84 from 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 9:
270 divided by 28 is 9 with a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 2395773.9
The remainder is 18 after subtracting 252 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
28 goes into 180 6 times with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 2395773.96
If we take 168 away from 180, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 11:
When dividing 120 by 28, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 2395773.964
If we take 112 away from 120, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
When dividing 80 by 28, we get 2 with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 2395773.9642
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 13:
When dividing 240 by 28, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 2395773.96428
The remainder is 16 after subtracting 224 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
If we divide 160 by 28, we get 5 and a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 2395773.964285
Subtracting 140 from 160 leaves us 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.

Step 15:
When dividing 200 by 28, we get 7 with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 2395773.9642857
Subtract 196 from 200 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 16:
28 goes into 40 1 times with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 2395773.96428571
The remainder is 12 after subtracting 28 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 2395773.96428571, and the remainder is 1.2e-08.