We look at the division of 421930 by 68 
The aim is to understand the frequency of 68 in 421930.

Advancing to step 1:
68 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 68

Advancing to step 2:
If we divide 42 by 68, we get 0 and a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Append the next digit (1) from the dividend to 42 and continue with: 421 / 68

Advancing to step 3:
68 goes into 421 6 times with a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 408 from 421, we get 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 68

Advancing to step 4:
When dividing 139 by 68, we get 2 with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 62.0
Subtracting 136 from 139 leaves us with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 68

Advancing to step 5:
33 divided by 68 is 0 with a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 620.0
Deduct 0 from 33 and we're left with 33.
Include the next digit (0) from the dividend after 33, then repeat: 330 / 68

Going ahead to step 6:
The number 68 fits into 330 4 times, leaving a remainder of 58.
The number 4 becomes the next digit in our result. 
Result so far: 6204.0
The remainder is 58 after subtracting 272 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 7:
68 goes into 580 8 times with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 6204.8
Deduct 544 from 580 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 8:
68 can be fit into 360 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 6204.85
If we subtract 340 from 360, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
200 divided by 68 is 2 with a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 6204.852
The remainder is 64 after subtracting 136 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 10:
68 goes into 640 9 times with a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 6204.8529
If we take 612 away from 640, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
68 can be fit into 280 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 6204.85294
If we subtract 272 from 280, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
68 goes into 80 1 times with a remainder of 12.
The next digit of our result is 1. 
Result so far: 6204.852941
The remainder is 12 after subtracting 68 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 13:
68 can be fit into 120 1 times, resulting in a remainder of 52.
Write down 1 as next digit of the result. 
Result so far: 6204.8529411
If we subtract 68 from 120, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The quotient of the division is 6204.8529411, and the remainder is 5.2e-07.