We look at the division of 71892512 by 355 
The aim is to understand the frequency of 355 in 71892512.

Let's proceed to step 1:
355 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 355

Advancing to step 2:
355 can be fit into 71 0 times, resulting in a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Fetch the next digit (8) from the dividend, attach it to 71 and continue: 718 / 355

Let's proceed to step 3:
355 goes into 718 2 times with a remainder of 8.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 710 from 718 and we're left with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 355

Moving on to step 4:
355 can be fit into 89 0 times, resulting in a remainder of 89.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtract 0 from 89 to get 89.
Fetch the next digit (2) from the dividend, attach it to 89 and continue: 892 / 355

Step 5:
When dividing 892 by 355, we get 2 with a remainder of 182.
Record the quotient 2 as the next digit in the result. 
Result so far: 202.0
Subtract 710 from 892 to get 182.
Bring next digit (5) of the dividend behind the 182 and repeat the process: 1825 / 355

Let's proceed to step 6:
355 can be fit into 1825 5 times, resulting in a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 2025.0
If we take 1775 away from 1825, we end up with 50.
Include the next digit (1) from the dividend after 50, then repeat: 501 / 355

On to step 7:
355 can be fit into 501 1 times, resulting in a remainder of 146.
The number 1 becomes the next digit in our result. 
Result so far: 20251.0
Deduct 355 from 501 and we're left with 146.
Grab the next digit (2) from the dividend, add it to 146, then carry on: 1462 / 355

Advancing to step 8:
355 can be fit into 1462 4 times, resulting in a remainder of 42.
Put 4 as the next digit of the answer. 
Result so far: 202514.0
The remainder is 42 after subtracting 1420 from 1462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 9:
420 divided by 355 is 1 with a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 202514.1
Deduct 355 from 420 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 10:
If we divide 650 by 355, we get 1 and a remainder of 295.
Put 1 as the next digit of the answer. 
Result so far: 202514.11
If we subtract 355 from 650, we get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

After the division, we end up with 202514.11 and a remainder of 0.295.