37545909 ÷ 72 
The aim is to understand the frequency of 72 in 37545909.

Moving on to step 1:
72 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 72

Let's proceed to step 2:
37 divided by 72 is 0 with a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 37, we get 37.
Include the next digit (5) from the dividend after 37, then repeat: 375 / 72

Moving on to step 3:
The number 72 fits into 375 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 360 from 375 to get 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 72

On to step 4:
154 divided by 72 is 2 with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 52.0
Deduct 144 from 154 and we're left with 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 72

On to step 5:
When dividing 105 by 72, we get 1 with a remainder of 33.
Record the quotient 1 as the next digit in the result. 
Result so far: 521.0
Deduct 72 from 105 and we're left with 33.
Bring next digit (9) of the dividend behind the 33 and repeat the process: 339 / 72

Going ahead to step 6:
339 divided by 72 is 4 with a remainder of 51.
Use 4 as the next digit of our solution. 
Result so far: 5214.0
Subtracting 288 from 339 leaves us with 51.
Bring next digit (0) of the dividend behind the 51 and repeat the process: 510 / 72

Going ahead to step 7:
510 divided by 72 is 7 with a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 52147.0
If we take 504 away from 510, we end up with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 72

Moving on to step 8:
72 can be fit into 69 0 times, resulting in a remainder of 69.
The next digit of our result is 0. 
Result so far: 521470.0
Deduct 0 from 69 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 9:
When dividing 690 by 72, we get 9 with a remainder of 42.
The number 9 becomes the next digit in our result. 
Result so far: 521470.9
The remainder is 42 after subtracting 648 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 10:
When dividing 420 by 72, we get 5 with a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 521470.95
If we take 360 away from 420, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
600 divided by 72 is 8 with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 521470.958
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.

Going ahead to step 12:
72 goes into 240 3 times with a remainder of 24.
Use 3 as the next digit of our solution. 
Result so far: 521470.9583
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.

On to step 13:
72 can be fit into 240 3 times, resulting in a remainder of 24.
Use 3 as the next digit of our solution. 
Result so far: 521470.95833
The remainder is 24 after subtracting 216 from 240.
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 521470.95833, and the remainder is 2.4e-05.