212540 divided by 72 
The aim is to understand the frequency of 72 in 212540.

Advancing to step 1:
The number 72 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 72

Moving on to step 2:
21 divided by 72 is 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 72

Advancing to step 3:
The number 72 fits into 212 2 times, leaving a remainder of 68.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 144 from 212 and we're left with 68.
Append the next digit (5) from the dividend to 68 and continue with: 685 / 72

Going ahead to step 4:
The number 72 fits into 685 9 times, leaving a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
If we take 648 away from 685, we end up with 37.
Grab the next digit (4) from the dividend, add it to 37, then carry on: 374 / 72

Step 5:
374 divided by 72 is 5 with a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 295.0
If we subtract 360 from 374, we get 14.
Append the next digit (0) from the dividend to 14 and continue with: 140 / 72

Moving on to step 6:
When dividing 140 by 72, we get 1 with a remainder of 68.
The next digit of our result is 1. 
Result so far: 2951.0
Deduct 72 from 140 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 7:
72 goes into 680 9 times with a remainder of 32.
Write down 9 as next digit of the result. 
Result so far: 2951.9
The remainder is 32 after subtracting 648 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 8:
If we divide 320 by 72, we get 4 and a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 2951.94
If we subtract 288 from 320, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
72 can be fit into 320 4 times, resulting in a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 2951.944
The remainder is 32 after subtracting 288 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 2951.944 and a remainder of 0.0032.