We look at the division of 68980099 by 159 
The aim is to understand the frequency of 159 in 68980099.

Going ahead to step 1:
159 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 159

Let's proceed to step 2:
The number 159 fits into 68 0 times, leaving a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Grab the next digit (9) from the dividend, add it to 68, then carry on: 689 / 159

Step 3:
The number 159 fits into 689 4 times, leaving a remainder of 53.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 636 from 689, we get 53.
Include the next digit (8) from the dividend after 53, then repeat: 538 / 159

Moving on to step 4:
If we divide 538 by 159, we get 3 and a remainder of 61.
The next digit of our result is 3. 
Result so far: 43.0
Deduct 477 from 538 and we're left with 61.
Fetch the next digit (0) from the dividend, attach it to 61 and continue: 610 / 159

Let's proceed to step 5:
When dividing 610 by 159, we get 3 with a remainder of 133.
The number 3 becomes the next digit in our result. 
Result so far: 433.0
Subtract 477 from 610 to get 133.
Fetch the next digit (0) from the dividend, attach it to 133 and continue: 1330 / 159

Moving on to step 6:
If we divide 1330 by 159, we get 8 and a remainder of 58.
Record the quotient 8 as the next digit in the result. 
Result so far: 4338.0
If we take 1272 away from 1330, we end up with 58.
Grab the next digit (9) from the dividend, add it to 58, then carry on: 589 / 159

Step 7:
When dividing 589 by 159, we get 3 with a remainder of 112.
The number 3 becomes the next digit in our result. 
Result so far: 43383.0
Subtract 477 from 589 to get 112.
Take the next digit (9) from the dividend and append it to 112, then repeat: 1129 / 159

Going ahead to step 8:
1129 divided by 159 is 7 with a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 433837.0
The remainder is 16 after subtracting 1113 from 1129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
160 divided by 159 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 433837.1
The remainder is 1 after subtracting 159 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
The number 159 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 433837.1
If we take 0 away from 10, we end up with 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 11:
When dividing 100 by 159, we get 0 with a remainder of 100.
The next digit of our result is 0. 
Result so far: 433837.1
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 433837.1, and the remainder is 0.01.