We look at the division of 621210 by 67 
The aim is to understand the frequency of 67 in 621210.

Let's proceed to step 1:
67 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 67

Going ahead to step 2:
If we divide 62 by 67, we get 0 and a remainder of 62.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 62, we end up with 62.
Fetch the next digit (1) from the dividend, attach it to 62 and continue: 621 / 67

On to step 3:
621 divided by 67 is 9 with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 18 after subtracting 603 from 621.
Take the next digit (2) from the dividend and append it to 18, then repeat: 182 / 67

Step 4:
The number 67 fits into 182 2 times, leaving a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
If we take 134 away from 182, we end up with 48.
Take the next digit (1) from the dividend and append it to 48, then repeat: 481 / 67

Step 5:
67 goes into 481 7 times with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 927.0
If we subtract 469 from 481, we get 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 67

Advancing to step 6:
If we divide 120 by 67, we get 1 and a remainder of 53.
Record the quotient 1 as the next digit in the result. 
Result so far: 9271.0
If we take 67 away from 120, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 7:
67 can be fit into 530 7 times, resulting in a remainder of 61.
Put 7 as the next digit of the answer. 
Result so far: 9271.7
The remainder is 61 after subtracting 469 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 8:
67 can be fit into 610 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 9271.79
Subtract 603 from 610 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 9:
When dividing 70 by 67, we get 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 9271.791
Subtracting 67 from 70 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 10:
When dividing 30 by 67, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 9271.791
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
300 divided by 67 is 4 with a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 9271.79104
Subtract 268 from 300 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 12:
67 can be fit into 320 4 times, resulting in a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 9271.791044
Deduct 268 from 320 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 9271.791044 and a remainder of 5.2e-06.