We look at the division of 67771978 by 42 
The aim is to understand the frequency of 42 in 67771978.

Moving on to step 1:
6 divided by 42 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 42

Let's proceed to step 2:
The number 42 fits into 67 1 times, leaving a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 42 from 67, we get 25.
Fetch the next digit (7) from the dividend, attach it to 25 and continue: 257 / 42

Moving on to step 3:
42 goes into 257 6 times with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 252 away from 257, we end up with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 42

Let's proceed to step 4:
42 goes into 57 1 times with a remainder of 15.
The next digit of our result is 1. 
Result so far: 161.0
If we subtract 42 from 57, we get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 42

Let's proceed to step 5:
42 goes into 151 3 times with a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 1613.0
Subtract 126 from 151 to get 25.
Include the next digit (9) from the dividend after 25, then repeat: 259 / 42

Advancing to step 6:
If we divide 259 by 42, we get 6 and a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 16136.0
Deduct 252 from 259 and we're left with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 42

Going ahead to step 7:
If we divide 77 by 42, we get 1 and a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 161361.0
Subtract 42 from 77 to get 35.
Take the next digit (8) from the dividend and append it to 35, then repeat: 358 / 42

Advancing to step 8:
When dividing 358 by 42, we get 8 with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 1613618.0
If we take 336 away from 358, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
If we divide 220 by 42, we get 5 and a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 1613618.5
The remainder is 10 after subtracting 210 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
When dividing 100 by 42, we get 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 1613618.52
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
42 goes into 160 3 times with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 1613618.523
If we subtract 126 from 160, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 12:
340 divided by 42 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 1613618.5238
Subtracting 336 from 340 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 13:
If we divide 40 by 42, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 1613618.5238
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 14:
42 can be fit into 400 9 times, resulting in a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 1613618.523809
Subtract 378 from 400 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 15:
220 divided by 42 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 1613618.5238095
Subtract 210 from 220 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 16:
When dividing 100 by 42, we get 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 1613618.52380952
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 1613618.52380952, with a leftover of 1.6e-08.