66779115 divided by 397 
The aim is to understand the frequency of 397 in 66779115.

Let's proceed to step 1:
The number 397 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 397

Moving on to step 2:
The number 397 fits into 66 0 times, leaving a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Grab the next digit (7) from the dividend, add it to 66, then carry on: 667 / 397

On to step 3:
397 can be fit into 667 1 times, resulting in a remainder of 270.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 270 after subtracting 397 from 667.
Append the next digit (7) from the dividend to 270 and continue with: 2707 / 397

Going ahead to step 4:
397 can be fit into 2707 6 times, resulting in a remainder of 325.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Subtracting 2382 from 2707 leaves us with 325.
Fetch the next digit (9) from the dividend, attach it to 325 and continue: 3259 / 397

On to step 5:
If we divide 3259 by 397, we get 8 and a remainder of 83.
The number 8 becomes the next digit in our result. 
Result so far: 168.0
Subtracting 3176 from 3259 leaves us with 83.
Grab the next digit (1) from the dividend, add it to 83, then carry on: 831 / 397

Step 6:
397 goes into 831 2 times with a remainder of 37.
Write down 2 as next digit of the result. 
Result so far: 1682.0
Subtracting 794 from 831 leaves us with 37.
Bring next digit (1) of the dividend behind the 37 and repeat the process: 371 / 397

Going ahead to step 7:
371 divided by 397 is 0 with a remainder of 371.
Record the quotient 0 as the next digit in the result. 
Result so far: 16820.0
Subtracting 0 from 371 leaves us with 371.
Include the next digit (5) from the dividend after 371, then repeat: 3715 / 397

On to step 8:
397 can be fit into 3715 9 times, resulting in a remainder of 142.
Use 9 as the next digit of our solution. 
Result so far: 168209.0
Subtract 3573 from 3715 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Step 9:
The number 397 fits into 1420 3 times, leaving a remainder of 229.
Write down 3 as next digit of the result. 
Result so far: 168209.3
Deduct 1191 from 1420 and we're left with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Moving on to step 10:
397 can be fit into 2290 5 times, resulting in a remainder of 305.
The next digit of our result is 5. 
Result so far: 168209.35
If we take 1985 away from 2290, we end up with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Step 11:
397 can be fit into 3050 7 times, resulting in a remainder of 271.
Use 7 as the next digit of our solution. 
Result so far: 168209.357
If we subtract 2779 from 3050, we get 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Advancing to step 12:
397 can be fit into 2710 6 times, resulting in a remainder of 328.
Write down 6 as next digit of the result. 
Result so far: 168209.3576
The remainder is 328 after subtracting 2382 from 2710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 13:
If we divide 3280 by 397, we get 8 and a remainder of 104.
Put 8 as the next digit of the answer. 
Result so far: 168209.35768
If we take 3176 away from 3280, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 14:
1040 divided by 397 is 2 with a remainder of 246.
Put 2 as the next digit of the answer. 
Result so far: 168209.357682
Subtracting 794 from 1040 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

On to step 15:
The number 397 fits into 2460 6 times, leaving a remainder of 78.
Write down 6 as next digit of the result. 
Result so far: 168209.3576826
Subtract 2382 from 2460 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 16:
397 goes into 780 1 times with a remainder of 383.
The next digit of our result is 1. 
Result so far: 168209.35768261
Subtracting 397 from 780 leaves us with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

In conclusion, the division gives 168209.35768261 with a balance of 3.83e-07.