66877040 divided by 799 
The aim is to understand the frequency of 799 in 66877040.

Step 1:
6 divided by 799 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 799

Step 2:
799 can be fit into 66 0 times, resulting in a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Bring next digit (8) of the dividend behind the 66 and repeat the process: 668 / 799

On to step 3:
799 goes into 668 0 times with a remainder of 668.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 668 to get 668.
Bring next digit (7) of the dividend behind the 668 and repeat the process: 6687 / 799

Going ahead to step 4:
799 goes into 6687 8 times with a remainder of 295.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 6392 away from 6687, we end up with 295.
Append the next digit (7) from the dividend to 295 and continue with: 2957 / 799

On to step 5:
799 can be fit into 2957 3 times, resulting in a remainder of 560.
Write down 3 as next digit of the result. 
Result so far: 83.0
If we take 2397 away from 2957, we end up with 560.
Grab the next digit (0) from the dividend, add it to 560, then carry on: 5600 / 799

Let's proceed to step 6:
If we divide 5600 by 799, we get 7 and a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 837.0
Subtract 5593 from 5600 to get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 799

Going ahead to step 7:
74 divided by 799 is 0 with a remainder of 74.
Use 0 as the next digit of our solution. 
Result so far: 8370.0
Subtract 0 from 74 to get 74.
Fetch the next digit (0) from the dividend, attach it to 74 and continue: 740 / 799

Moving on to step 8:
When dividing 740 by 799, we get 0 with a remainder of 740.
The number 0 becomes the next digit in our result. 
Result so far: 83700.0
If we subtract 0 from 740, we get 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Going ahead to step 9:
7400 divided by 799 is 9 with a remainder of 209.
The next digit of our result is 9. 
Result so far: 83700.9
If we take 7191 away from 7400, we end up with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

On to step 10:
799 goes into 2090 2 times with a remainder of 492.
The next digit of our result is 2. 
Result so far: 83700.92
If we subtract 1598 from 2090, we get 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Advancing to step 11:
799 goes into 4920 6 times with a remainder of 126.
Use 6 as the next digit of our solution. 
Result so far: 83700.926
Subtract 4794 from 4920 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 12:
When dividing 1260 by 799, we get 1 with a remainder of 461.
Record the quotient 1 as the next digit in the result. 
Result so far: 83700.9261
Subtracting 799 from 1260 leaves us with 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

Let's proceed to step 13:
4610 divided by 799 is 5 with a remainder of 615.
The next digit of our result is 5. 
Result so far: 83700.92615
If we take 3995 away from 4610, we end up with 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Advancing to step 14:
6150 divided by 799 is 7 with a remainder of 557.
Record the quotient 7 as the next digit in the result. 
Result so far: 83700.926157
Deduct 5593 from 6150 and we're left with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Advancing to step 15:
5570 divided by 799 is 6 with a remainder of 776.
Write down 6 as next digit of the result. 
Result so far: 83700.9261576
If we take 4794 away from 5570, we end up with 776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Moving on to step 16:
799 can be fit into 7760 9 times, resulting in a remainder of 569.
The next digit of our result is 9. 
Result so far: 83700.92615769
If we subtract 7191 from 7760, we get 569.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5690, and continue the process.

In conclusion, the division gives 83700.92615769 with a balance of 5.69e-07.