We look at the division of 29967141 by 771 
The aim is to understand the frequency of 771 in 29967141.

Step 1:
The number 771 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 771

Let's proceed to step 2:
29 divided by 771 is 0 with a remainder of 29.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 29 leaves us with 29.
Bring next digit (9) of the dividend behind the 29 and repeat the process: 299 / 771

On to step 3:
If we divide 299 by 771, we get 0 and a remainder of 299.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 299 and we're left with 299.
Bring next digit (6) of the dividend behind the 299 and repeat the process: 2996 / 771

Going ahead to step 4:
The number 771 fits into 2996 3 times, leaving a remainder of 683.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 2313 from 2996 leaves us with 683.
Include the next digit (7) from the dividend after 683, then repeat: 6837 / 771

Moving on to step 5:
771 can be fit into 6837 8 times, resulting in a remainder of 669.
The next digit of our result is 8. 
Result so far: 38.0
If we take 6168 away from 6837, we end up with 669.
Bring next digit (1) of the dividend behind the 669 and repeat the process: 6691 / 771

On to step 6:
When dividing 6691 by 771, we get 8 with a remainder of 523.
Write down 8 as next digit of the result. 
Result so far: 388.0
Subtract 6168 from 6691 to get 523.
Grab the next digit (4) from the dividend, add it to 523, then carry on: 5234 / 771

Going ahead to step 7:
When dividing 5234 by 771, we get 6 with a remainder of 608.
The next digit of our result is 6. 
Result so far: 3886.0
The remainder is 608 after subtracting 4626 from 5234.
Take the next digit (1) from the dividend and append it to 608, then repeat: 6081 / 771

On to step 8:
When dividing 6081 by 771, we get 7 with a remainder of 684.
Put 7 as the next digit of the answer. 
Result so far: 38867.0
If we take 5397 away from 6081, we end up with 684.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6840, and continue the process.

Advancing to step 9:
771 goes into 6840 8 times with a remainder of 672.
The next digit of our result is 8. 
Result so far: 38867.8
If we take 6168 away from 6840, we end up with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Advancing to step 10:
771 can be fit into 6720 8 times, resulting in a remainder of 552.
The number 8 becomes the next digit in our result. 
Result so far: 38867.88
The remainder is 552 after subtracting 6168 from 6720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

After the division, we end up with 38867.88 and a remainder of 0.552.