We look at the division of 160649 by 72 
The aim is to understand the frequency of 72 in 160649.

Let's proceed to step 1:
When dividing 1 by 72, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 72

On to step 2:
The number 72 fits into 16 0 times, leaving a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 72

Let's proceed to step 3:
72 goes into 160 2 times with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 144 from 160 and we're left with 16.
Append the next digit (6) from the dividend to 16 and continue with: 166 / 72

Let's proceed to step 4:
If we divide 166 by 72, we get 2 and a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
Subtract 144 from 166 to get 22.
Bring next digit (4) of the dividend behind the 22 and repeat the process: 224 / 72

Going ahead to step 5:
The number 72 fits into 224 3 times, leaving a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 223.0
If we take 216 away from 224, we end up with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 72

Moving on to step 6:
The number 72 fits into 89 1 times, leaving a remainder of 17.
The next digit of our result is 1. 
Result so far: 2231.0
If we take 72 away from 89, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
The number 72 fits into 170 2 times, leaving a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 2231.2
Subtract 144 from 170 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 8:
72 can be fit into 260 3 times, resulting in a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 2231.23
The remainder is 44 after subtracting 216 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 9:
72 goes into 440 6 times with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 2231.236
Subtract 432 from 440 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
If we divide 80 by 72, we get 1 and a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 2231.2361
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 11:
72 can be fit into 80 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 2231.23611
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 2231.23611 with a balance of 8e-06.