Let's divide 38067286 by 621
The aim is to understand the frequency of 621 in 38067286.

Advancing to step 1:
621 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 621

Moving on to step 2:
38 divided by 621 is 0 with a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Grab the next digit (0) from the dividend, add it to 38, then carry on: 380 / 621

Let's proceed to step 3:
621 goes into 380 0 times with a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 380 to get 380.
Take the next digit (6) from the dividend and append it to 380, then repeat: 3806 / 621

Going ahead to step 4:
621 goes into 3806 6 times with a remainder of 80.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 3726 from 3806 leaves us with 80.
Fetch the next digit (7) from the dividend, attach it to 80 and continue: 807 / 621

Moving on to step 5:
The number 621 fits into 807 1 times, leaving a remainder of 186.
The next digit of our result is 1. 
Result so far: 61.0
Deduct 621 from 807 and we're left with 186.
Append the next digit (2) from the dividend to 186 and continue with: 1862 / 621

Advancing to step 6:
When dividing 1862 by 621, we get 2 with a remainder of 620.
Record the quotient 2 as the next digit in the result. 
Result so far: 612.0
If we subtract 1242 from 1862, we get 620.
Grab the next digit (8) from the dividend, add it to 620, then carry on: 6208 / 621

Advancing to step 7:
621 can be fit into 6208 9 times, resulting in a remainder of 619.
Put 9 as the next digit of the answer. 
Result so far: 6129.0
The remainder is 619 after subtracting 5589 from 6208.
Grab the next digit (6) from the dividend, add it to 619, then carry on: 6196 / 621

Moving on to step 8:
621 goes into 6196 9 times with a remainder of 607.
Write down 9 as next digit of the result. 
Result so far: 61299.0
The remainder is 607 after subtracting 5589 from 6196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Going ahead to step 9:
If we divide 6070 by 621, we get 9 and a remainder of 481.
The next digit of our result is 9. 
Result so far: 61299.9
Subtracting 5589 from 6070 leaves us with 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Step 10:
4810 divided by 621 is 7 with a remainder of 463.
Use 7 as the next digit of our solution. 
Result so far: 61299.97
The remainder is 463 after subtracting 4347 from 4810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Let's proceed to step 11:
When dividing 4630 by 621, we get 7 with a remainder of 283.
The number 7 becomes the next digit in our result. 
Result so far: 61299.977
Subtracting 4347 from 4630 leaves us with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

In conclusion, the division gives 61299.977 with a balance of 0.0283.