29530264 divided by 621 
The aim is to understand the frequency of 621 in 29530264.

Going ahead to step 1:
When dividing 2 by 621, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 621

On to step 2:
29 divided by 621 is 0 with a remainder of 29.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 29 leaves us with 29.
Append the next digit (5) from the dividend to 29 and continue with: 295 / 621

Going ahead to step 3:
If we divide 295 by 621, we get 0 and a remainder of 295.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 295 after subtracting 0 from 295.
Append the next digit (3) from the dividend to 295 and continue with: 2953 / 621

Advancing to step 4:
621 can be fit into 2953 4 times, resulting in a remainder of 469.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 2484 from 2953 to get 469.
Grab the next digit (0) from the dividend, add it to 469, then carry on: 4690 / 621

Advancing to step 5:
If we divide 4690 by 621, we get 7 and a remainder of 343.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
Subtracting 4347 from 4690 leaves us with 343.
Append the next digit (2) from the dividend to 343 and continue with: 3432 / 621

Going ahead to step 6:
The number 621 fits into 3432 5 times, leaving a remainder of 327.
The next digit of our result is 5. 
Result so far: 475.0
Deduct 3105 from 3432 and we're left with 327.
Include the next digit (6) from the dividend after 327, then repeat: 3276 / 621

Advancing to step 7:
621 can be fit into 3276 5 times, resulting in a remainder of 171.
Use 5 as the next digit of our solution. 
Result so far: 4755.0
Deduct 3105 from 3276 and we're left with 171.
Fetch the next digit (4) from the dividend, attach it to 171 and continue: 1714 / 621

Advancing to step 8:
If we divide 1714 by 621, we get 2 and a remainder of 472.
Record the quotient 2 as the next digit in the result. 
Result so far: 47552.0
If we subtract 1242 from 1714, we get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Let's proceed to step 9:
The number 621 fits into 4720 7 times, leaving a remainder of 373.
Record the quotient 7 as the next digit in the result. 
Result so far: 47552.7
Subtracting 4347 from 4720 leaves us with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Advancing to step 10:
621 can be fit into 3730 6 times, resulting in a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 47552.76
The remainder is 4 after subtracting 3726 from 3730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 11:
The number 621 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 47552.76
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
When dividing 400 by 621, we get 0 with a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 47552.76
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 47552.76 with a remainder of 0.004.