We look at the division of 510321 by 67 
The aim is to understand the frequency of 67 in 510321.

Advancing to step 1:
67 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 67

Let's proceed to step 2:
If we divide 51 by 67, we get 0 and a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 67

Moving on to step 3:
The number 67 fits into 510 7 times, leaving a remainder of 41.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 469 from 510 and we're left with 41.
Grab the next digit (3) from the dividend, add it to 41, then carry on: 413 / 67

Going ahead to step 4:
When dividing 413 by 67, we get 6 with a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
Subtracting 402 from 413 leaves us with 11.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 67

Moving on to step 5:
112 divided by 67 is 1 with a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 761.0
If we subtract 67 from 112, we get 45.
Grab the next digit (1) from the dividend, add it to 45, then carry on: 451 / 67

Let's proceed to step 6:
67 goes into 451 6 times with a remainder of 49.
Put 6 as the next digit of the answer. 
Result so far: 7616.0
Deduct 402 from 451 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 7:
If we divide 490 by 67, we get 7 and a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 7616.7
If we take 469 away from 490, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 8:
When dividing 210 by 67, we get 3 with a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 7616.73
Subtracting 201 from 210 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
If we divide 90 by 67, we get 1 and a remainder of 23.
Write down 1 as next digit of the result. 
Result so far: 7616.731
Subtracting 67 from 90 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 10:
If we divide 230 by 67, we get 3 and a remainder of 29.
Write down 3 as next digit of the result. 
Result so far: 7616.7313
If we take 201 away from 230, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 11:
When dividing 290 by 67, we get 4 with a remainder of 22.
Put 4 as the next digit of the answer. 
Result so far: 7616.73134
The remainder is 22 after subtracting 268 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 12:
67 can be fit into 220 3 times, resulting in a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 7616.731343
Subtract 201 from 220 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
The number 67 fits into 190 2 times, leaving a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 7616.7313432
Subtract 134 from 190 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
The number 67 fits into 560 8 times, leaving a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 7616.73134328
Subtract 536 from 560 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 7616.73134328 with a remainder of 2.4e-08.