Let's divide 38877584 by 799
The aim is to understand the frequency of 799 in 38877584.

Going ahead to step 1:
If we divide 3 by 799, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 799

Going ahead to step 2:
38 divided by 799 is 0 with a remainder of 38.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 38 to get 38.
Bring next digit (8) of the dividend behind the 38 and repeat the process: 388 / 799

Moving on to step 3:
799 can be fit into 388 0 times, resulting in a remainder of 388.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 388 and we're left with 388.
Bring next digit (7) of the dividend behind the 388 and repeat the process: 3887 / 799

Going ahead to step 4:
799 can be fit into 3887 4 times, resulting in a remainder of 691.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 3196 from 3887 leaves us with 691.
Include the next digit (7) from the dividend after 691, then repeat: 6917 / 799

Step 5:
799 can be fit into 6917 8 times, resulting in a remainder of 525.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
Deduct 6392 from 6917 and we're left with 525.
Include the next digit (5) from the dividend after 525, then repeat: 5255 / 799

Step 6:
The number 799 fits into 5255 6 times, leaving a remainder of 461.
The next digit of our result is 6. 
Result so far: 486.0
If we subtract 4794 from 5255, we get 461.
Fetch the next digit (8) from the dividend, attach it to 461 and continue: 4618 / 799

Let's proceed to step 7:
When dividing 4618 by 799, we get 5 with a remainder of 623.
Put 5 as the next digit of the answer. 
Result so far: 4865.0
Subtract 3995 from 4618 to get 623.
Fetch the next digit (4) from the dividend, attach it to 623 and continue: 6234 / 799

Step 8:
The number 799 fits into 6234 7 times, leaving a remainder of 641.
Put 7 as the next digit of the answer. 
Result so far: 48657.0
Subtract 5593 from 6234 to get 641.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6410, and continue the process.

Step 9:
The number 799 fits into 6410 8 times, leaving a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 48657.8
The remainder is 18 after subtracting 6392 from 6410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 10:
180 divided by 799 is 0 with a remainder of 180.
The next digit of our result is 0. 
Result so far: 48657.8
If we take 0 away from 180, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Advancing to step 11:
799 goes into 1800 2 times with a remainder of 202.
Put 2 as the next digit of the answer. 
Result so far: 48657.802
Subtract 1598 from 1800 to get 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Step 12:
799 goes into 2020 2 times with a remainder of 422.
Write down 2 as next digit of the result. 
Result so far: 48657.8022
If we take 1598 away from 2020, we end up with 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

After the division, we end up with 48657.8022 and a remainder of 0.00422.