67690856 ÷ 621 
The aim is to understand the frequency of 621 in 67690856.

Advancing to step 1:
The number 621 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 621

Moving on to step 2:
621 goes into 67 0 times with a remainder of 67.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 67, we end up with 67.
Bring next digit (6) of the dividend behind the 67 and repeat the process: 676 / 621

On to step 3:
The number 621 fits into 676 1 times, leaving a remainder of 55.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 621 from 676, we get 55.
Take the next digit (9) from the dividend and append it to 55, then repeat: 559 / 621

Step 4:
621 can be fit into 559 0 times, resulting in a remainder of 559.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 559, we get 559.
Include the next digit (0) from the dividend after 559, then repeat: 5590 / 621

Moving on to step 5:
If we divide 5590 by 621, we get 9 and a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 109.0
Subtracting 5589 from 5590 leaves us with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 621

Going ahead to step 6:
18 divided by 621 is 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 1090.0
If we take 0 away from 18, we end up with 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 621

Going ahead to step 7:
185 divided by 621 is 0 with a remainder of 185.
Write down 0 as next digit of the result. 
Result so far: 10900.0
The remainder is 185 after subtracting 0 from 185.
Fetch the next digit (6) from the dividend, attach it to 185 and continue: 1856 / 621

Going ahead to step 8:
The number 621 fits into 1856 2 times, leaving a remainder of 614.
Put 2 as the next digit of the answer. 
Result so far: 109002.0
If we take 1242 away from 1856, we end up with 614.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

Advancing to step 9:
When dividing 6140 by 621, we get 9 with a remainder of 551.
Use 9 as the next digit of our solution. 
Result so far: 109002.9
If we subtract 5589 from 6140, we get 551.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

Step 10:
If we divide 5510 by 621, we get 8 and a remainder of 542.
The next digit of our result is 8. 
Result so far: 109002.98
If we take 4968 away from 5510, we end up with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Let's proceed to step 11:
5420 divided by 621 is 8 with a remainder of 452.
Write down 8 as next digit of the result. 
Result so far: 109002.988
Subtract 4968 from 5420 to get 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

The quotient of the division is 109002.988, and the remainder is 0.0452.