45891431 divided by 72 
The aim is to understand the frequency of 72 in 45891431.

Step 1:
72 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 72

Let's proceed to step 2:
45 divided by 72 is 0 with a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Append the next digit (8) from the dividend to 45 and continue with: 458 / 72

Moving on to step 3:
72 goes into 458 6 times with a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 432 away from 458, we end up with 26.
Include the next digit (9) from the dividend after 26, then repeat: 269 / 72

Moving on to step 4:
If we divide 269 by 72, we get 3 and a remainder of 53.
Use 3 as the next digit of our solution. 
Result so far: 63.0
Subtract 216 from 269 to get 53.
Append the next digit (1) from the dividend to 53 and continue with: 531 / 72

Let's proceed to step 5:
When dividing 531 by 72, we get 7 with a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 637.0
Subtracting 504 from 531 leaves us with 27.
Bring next digit (4) of the dividend behind the 27 and repeat the process: 274 / 72

Let's proceed to step 6:
72 can be fit into 274 3 times, resulting in a remainder of 58.
The number 3 becomes the next digit in our result. 
Result so far: 6373.0
Subtracting 216 from 274 leaves us with 58.
Take the next digit (3) from the dividend and append it to 58, then repeat: 583 / 72

Advancing to step 7:
583 divided by 72 is 8 with a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 63738.0
Subtracting 576 from 583 leaves us with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 72

Moving on to step 8:
72 goes into 71 0 times with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 637380.0
Deduct 0 from 71 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 9:
72 goes into 710 9 times with a remainder of 62.
Write down 9 as next digit of the result. 
Result so far: 637380.9
Deduct 648 from 710 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 10:
72 goes into 620 8 times with a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 637380.98
Deduct 576 from 620 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 11:
72 can be fit into 440 6 times, resulting in a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 637380.986
Deduct 432 from 440 and we're left 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.

On to step 12:
72 goes into 80 1 times with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 637380.9861
If we subtract 72 from 80, we 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.

On to step 13:
72 goes into 80 1 times with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 637380.98611
Deduct 72 from 80 and we're left 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.

The quotient of the division is 637380.98611, and the remainder is 8e-06.