We look at the division of 429090 by 72 
The aim is to understand the frequency of 72 in 429090.

Let's proceed to step 1:
72 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 72

Advancing to step 2:
72 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Take the next digit (9) from the dividend and append it to 42, then repeat: 429 / 72

On to step 3:
If we divide 429 by 72, we get 5 and a remainder of 69.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 69 after subtracting 360 from 429.
Append the next digit (0) from the dividend to 69 and continue with: 690 / 72

On to step 4:
The number 72 fits into 690 9 times, leaving a remainder of 42.
Record the quotient 9 as the next digit in the result. 
Result so far: 59.0
The remainder is 42 after subtracting 648 from 690.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 72

Advancing to step 5:
When dividing 429 by 72, we get 5 with a remainder of 69.
Put 5 as the next digit of the answer. 
Result so far: 595.0
Subtracting 360 from 429 leaves us with 69.
Fetch the next digit (0) from the dividend, attach it to 69 and continue: 690 / 72

Going ahead to step 6:
The number 72 fits into 690 9 times, leaving a remainder of 42.
Use 9 as the next digit of our solution. 
Result so far: 5959.0
Deduct 648 from 690 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 7:
If we divide 420 by 72, we get 5 and a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 5959.5
If we subtract 360 from 420, we 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.

On to step 8:
72 can be fit into 600 8 times, resulting in a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 5959.58
If we subtract 576 from 600, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
72 can be fit into 240 3 times, resulting in a remainder of 24.
Write down 3 as next digit of the result. 
Result so far: 5959.583
Deduct 216 from 240 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 10:
72 goes into 240 3 times with a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 5959.5833
Subtract 216 from 240 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 5959.5833 with a balance of 0.00024.