813854 ÷ 72 
The aim is to understand the frequency of 72 in 813854.

Advancing to step 1:
When dividing 8 by 72, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 72

Moving on to step 2:
81 divided by 72 is 1 with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 72 from 81 and we're left with 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 72

On to step 3:
The number 72 fits into 93 1 times, leaving a remainder of 21.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 21 after subtracting 72 from 93.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 72

Moving on to step 4:
If we divide 218 by 72, we get 3 and a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 113.0
Subtracting 216 from 218 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 72

On to step 5:
When dividing 25 by 72, we get 0 with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 1130.0
Deduct 0 from 25 and we're left with 25.
Bring next digit (4) of the dividend behind the 25 and repeat the process: 254 / 72

Going ahead to step 6:
72 goes into 254 3 times with a remainder of 38.
Write down 3 as next digit of the result. 
Result so far: 11303.0
Deduct 216 from 254 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 7:
When dividing 380 by 72, we get 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 11303.5
Deduct 360 from 380 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
200 divided by 72 is 2 with a remainder of 56.
Put 2 as the next digit of the answer. 
Result so far: 11303.52
Deduct 144 from 200 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 9:
The number 72 fits into 560 7 times, leaving a remainder of 56.
The next digit of our result is 7. 
Result so far: 11303.527
Subtract 504 from 560 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 10:
560 divided by 72 is 7 with a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 11303.5277
The remainder is 56 after subtracting 504 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The quotient of the division is 11303.5277, and the remainder is 0.00056.