426561 divided by 72 
The aim is to understand the frequency of 72 in 426561.

Step 1:
72 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 72

Moving on to step 2:
72 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (6) of the dividend behind the 42 and repeat the process: 426 / 72

On to step 3:
426 divided by 72 is 5 with a remainder of 66.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 360 from 426 and we're left with 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 72

Step 4:
72 can be fit into 665 9 times, resulting in a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 59.0
If we take 648 away from 665, we end up with 17.
Include the next digit (6) from the dividend after 17, then repeat: 176 / 72

Advancing to step 5:
72 can be fit into 176 2 times, resulting in a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 592.0
Subtracting 144 from 176 leaves us with 32.
Include the next digit (1) from the dividend after 32, then repeat: 321 / 72

Moving on to step 6:
321 divided by 72 is 4 with a remainder of 33.
The number 4 becomes the next digit in our result. 
Result so far: 5924.0
Subtracting 288 from 321 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 7:
The number 72 fits into 330 4 times, leaving a remainder of 42.
The next digit of our result is 4. 
Result so far: 5924.4
If we subtract 288 from 330, we get 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 8:
72 can be fit into 420 5 times, resulting in a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 5924.45
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 9:
The number 72 fits into 600 8 times, leaving a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 5924.458
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.

On to step 10:
The number 72 fits into 240 3 times, leaving a remainder of 24.
Use 3 as the next digit of our solution. 
Result so far: 5924.4583
If we take 216 away from 240, we end up 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.

Moving on to step 11:
The number 72 fits into 240 3 times, leaving a remainder of 24.
Use 3 as the next digit of our solution. 
Result so far: 5924.45833
Subtracting 216 from 240 leaves us 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.

The quotient of the division is 5924.45833, and the remainder is 2.4e-05.