We're dividing 78397966 by 281 
The aim is to understand the frequency of 281 in 78397966.

Let's proceed to step 1:
281 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 281

Advancing to step 2:
281 goes into 78 0 times with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Append the next digit (3) from the dividend to 78 and continue with: 783 / 281

Step 3:
When dividing 783 by 281, we get 2 with a remainder of 221.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 562 from 783 to get 221.
Bring next digit (9) of the dividend behind the 221 and repeat the process: 2219 / 281

Step 4:
When dividing 2219 by 281, we get 7 with a remainder of 252.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
The remainder is 252 after subtracting 1967 from 2219.
Fetch the next digit (7) from the dividend, attach it to 252 and continue: 2527 / 281

Moving on to step 5:
2527 divided by 281 is 8 with a remainder of 279.
The number 8 becomes the next digit in our result. 
Result so far: 278.0
Subtracting 2248 from 2527 leaves us with 279.
Include the next digit (9) from the dividend after 279, then repeat: 2799 / 281

Step 6:
281 can be fit into 2799 9 times, resulting in a remainder of 270.
Record the quotient 9 as the next digit in the result. 
Result so far: 2789.0
Deduct 2529 from 2799 and we're left with 270.
Append the next digit (6) from the dividend to 270 and continue with: 2706 / 281

Moving on to step 7:
281 goes into 2706 9 times with a remainder of 177.
Record the quotient 9 as the next digit in the result. 
Result so far: 27899.0
The remainder is 177 after subtracting 2529 from 2706.
Bring next digit (6) of the dividend behind the 177 and repeat the process: 1776 / 281

Advancing to step 8:
The number 281 fits into 1776 6 times, leaving a remainder of 90.
Record the quotient 6 as the next digit in the result. 
Result so far: 278996.0
The remainder is 90 after subtracting 1686 from 1776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 9:
900 divided by 281 is 3 with a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 278996.3
If we take 843 away from 900, we end up 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.

On to step 10:
When dividing 570 by 281, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 278996.32
The remainder is 8 after subtracting 562 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
80 divided by 281 is 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 278996.32
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
281 can be fit into 800 2 times, resulting in a remainder of 238.
Put 2 as the next digit of the answer. 
Result so far: 278996.3202
Deduct 562 from 800 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 13:
281 can be fit into 2380 8 times, resulting in a remainder of 132.
The next digit of our result is 8. 
Result so far: 278996.32028
If we subtract 2248 from 2380, we get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Going ahead to step 14:
When dividing 1320 by 281, we get 4 with a remainder of 196.
Write down 4 as next digit of the result. 
Result so far: 278996.320284
Deduct 1124 from 1320 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Step 15:
281 can be fit into 1960 6 times, resulting in a remainder of 274.
The next digit of our result is 6. 
Result so far: 278996.3202846
Deduct 1686 from 1960 and we're left with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Going ahead to step 16:
If we divide 2740 by 281, we get 9 and a remainder of 211.
Put 9 as the next digit of the answer. 
Result so far: 278996.32028469
Subtract 2529 from 2740 to get 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

The final outcome is 278996.32028469, with a leftover of 2.11e-07.