We look at the division of 403866 by 67 
The aim is to understand the frequency of 67 in 403866.

Moving on to step 1:
67 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 67

Going ahead to step 2:
67 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 67

Moving on to step 3:
When dividing 403 by 67, we get 6 with a remainder of 1.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 402 from 403 and we're left with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 67

Let's proceed to step 4:
If we divide 18 by 67, we get 0 and a remainder of 18.
The next digit of our result is 0. 
Result so far: 60.0
Subtract 0 from 18 to get 18.
Bring next digit (6) of the dividend behind the 18 and repeat the process: 186 / 67

On to step 5:
67 goes into 186 2 times with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 602.0
Deduct 134 from 186 and we're left with 52.
Grab the next digit (6) from the dividend, add it to 52, then carry on: 526 / 67

On to step 6:
When dividing 526 by 67, we get 7 with a remainder of 57.
Write down 7 as next digit of the result. 
Result so far: 6027.0
Subtracting 469 from 526 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 7:
If we divide 570 by 67, we get 8 and a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 6027.8
If we take 536 away from 570, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 8:
If we divide 340 by 67, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 6027.85
Subtracting 335 from 340 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
When dividing 50 by 67, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 6027.85
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
When dividing 500 by 67, we get 7 with a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 6027.8507
Subtract 469 from 500 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 11:
67 goes into 310 4 times with a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 6027.85074
If we subtract 268 from 310, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 12:
67 goes into 420 6 times with a remainder of 18.
The number 6 becomes the next digit in our result. 
Result so far: 6027.850746
Deduct 402 from 420 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 13:
180 divided by 67 is 2 with a remainder of 46.
Put 2 as the next digit of the answer. 
Result so far: 6027.8507462
Subtracting 134 from 180 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 14:
The number 67 fits into 460 6 times, leaving a remainder of 58.
Put 6 as the next digit of the answer. 
Result so far: 6027.85074626
Deduct 402 from 460 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 6027.85074626 and a remainder of 5.8e-08.