72789881 divided by 3 
The aim is to understand the frequency of 3 in 72789881.

Moving on to step 1:
7 divided by 3 is 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 6 from 7 leaves us with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 3

Step 2:
3 goes into 12 4 times with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtracting 12 from 12 leaves us with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 3

On to step 3:
When dividing 7 by 3, we get 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 242.0
Subtract 6 from 7 to get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 3

On to step 4:
The number 3 fits into 18 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 2426.0
Subtract 18 from 18 to get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 3

Moving on to step 5:
3 can be fit into 9 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 24263.0
The remainder is 0 after subtracting 9 from 9.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 3

Going ahead to step 6:
3 goes into 8 2 times with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 242632.0
The remainder is 2 after subtracting 6 from 8.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 3

Step 7:
The number 3 fits into 28 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 2426329.0
If we take 27 away from 28, we end up with 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 3

Going ahead to step 8:
The number 3 fits into 11 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 24263293.0
The remainder is 2 after subtracting 9 from 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
If we divide 20 by 3, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 24263293.6
If we subtract 18 from 20, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
3 goes into 20 6 times with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 24263293.66
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 24263293.66, and the remainder is 0.002.