We look at the division of 901984 by 68 
The aim is to understand the frequency of 68 in 901984.

On to step 1:
The number 68 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 68

Moving on to step 2:
The number 68 fits into 90 1 times, leaving a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 68 from 90 leaves us with 22.
Include the next digit (1) from the dividend after 22, then repeat: 221 / 68

Advancing to step 3:
68 can be fit into 221 3 times, resulting in a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtracting 204 from 221 leaves us with 17.
Include the next digit (9) from the dividend after 17, then repeat: 179 / 68

Step 4:
When dividing 179 by 68, we get 2 with a remainder of 43.
Record the quotient 2 as the next digit in the result. 
Result so far: 132.0
Deduct 136 from 179 and we're left with 43.
Bring next digit (8) of the dividend behind the 43 and repeat the process: 438 / 68

Advancing to step 5:
When dividing 438 by 68, we get 6 with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 1326.0
Subtract 408 from 438 to get 30.
Include the next digit (4) from the dividend after 30, then repeat: 304 / 68

Let's proceed to step 6:
68 goes into 304 4 times with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 13264.0
Subtract 272 from 304 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 7:
68 can be fit into 320 4 times, resulting in a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 13264.4
If we subtract 272 from 320, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 8:
When dividing 480 by 68, we get 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 13264.47
Subtracting 476 from 480 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.

Moving on to step 9:
If we divide 40 by 68, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 13264.47
Subtracting 0 from 40 leaves us 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.

Advancing to step 10:
400 divided by 68 is 5 with a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 13264.4705
Subtract 340 from 400 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
68 can be fit into 600 8 times, resulting in a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 13264.47058
Subtract 544 from 600 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 12:
68 can be fit into 560 8 times, resulting in a remainder of 16.
The next digit of our result is 8. 
Result so far: 13264.470588
The remainder is 16 after subtracting 544 from 560.
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 13264.470588, with a leftover of 1.6e-06.