421360 ÷ 67 
The aim is to understand the frequency of 67 in 421360.

On to step 1:
67 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 67

Going ahead to step 2:
42 divided by 67 is 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Take the next digit (1) from the dividend and append it to 42, then repeat: 421 / 67

Moving on to step 3:
67 can be fit into 421 6 times, resulting in a remainder of 19.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 402 from 421, we get 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 67

Let's proceed to step 4:
193 divided by 67 is 2 with a remainder of 59.
Write down 2 as next digit of the result. 
Result so far: 62.0
Subtract 134 from 193 to get 59.
Grab the next digit (6) from the dividend, add it to 59, then carry on: 596 / 67

Step 5:
67 goes into 596 8 times with a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 628.0
If we take 536 away from 596, we end up with 60.
Take the next digit (0) from the dividend and append it to 60, then repeat: 600 / 67

Step 6:
600 divided by 67 is 8 with a remainder of 64.
Use 8 as the next digit of our solution. 
Result so far: 6288.0
The remainder is 64 after subtracting 536 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 7:
67 can be fit into 640 9 times, resulting in a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 6288.9
If we subtract 603 from 640, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 8:
67 can be fit into 370 5 times, resulting in a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 6288.95
The remainder is 35 after subtracting 335 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
When dividing 350 by 67, we get 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 6288.955
Deduct 335 from 350 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 6288.955, with a leftover of 0.0015.