We look at the division of 81058421 by 497 
The aim is to understand the frequency of 497 in 81058421.

Going ahead to step 1:
If we divide 8 by 497, we get 0 and a remainder of 8.
The next digit of our result is 0. 
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 / 497

Let's proceed to step 2:
When dividing 81 by 497, we get 0 with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Bring next digit (0) of the dividend behind the 81 and repeat the process: 810 / 497

Step 3:
497 goes into 810 1 times with a remainder of 313.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 497 from 810 to get 313.
Grab the next digit (5) from the dividend, add it to 313, then carry on: 3135 / 497

On to step 4:
When dividing 3135 by 497, we get 6 with a remainder of 153.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 2982 away from 3135, we end up with 153.
Bring next digit (8) of the dividend behind the 153 and repeat the process: 1538 / 497

Let's proceed to step 5:
497 goes into 1538 3 times with a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 163.0
Deduct 1491 from 1538 and we're left with 47.
Grab the next digit (4) from the dividend, add it to 47, then carry on: 474 / 497

Let's proceed to step 6:
497 can be fit into 474 0 times, resulting in a remainder of 474.
Put 0 as the next digit of the answer. 
Result so far: 1630.0
Subtracting 0 from 474 leaves us with 474.
Grab the next digit (2) from the dividend, add it to 474, then carry on: 4742 / 497

Step 7:
497 goes into 4742 9 times with a remainder of 269.
The number 9 becomes the next digit in our result. 
Result so far: 16309.0
Subtracting 4473 from 4742 leaves us with 269.
Fetch the next digit (1) from the dividend, attach it to 269 and continue: 2691 / 497

Let's proceed to step 8:
The number 497 fits into 2691 5 times, leaving a remainder of 206.
Put 5 as the next digit of the answer. 
Result so far: 163095.0
If we subtract 2485 from 2691, we get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Advancing to step 9:
When dividing 2060 by 497, we get 4 with a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 163095.4
Deduct 1988 from 2060 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 10:
When dividing 720 by 497, we get 1 with a remainder of 223.
Record the quotient 1 as the next digit in the result. 
Result so far: 163095.41
Deduct 497 from 720 and we're left with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Step 11:
497 goes into 2230 4 times with a remainder of 242.
Record the quotient 4 as the next digit in the result. 
Result so far: 163095.414
Deduct 1988 from 2230 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Let's proceed to step 12:
2420 divided by 497 is 4 with a remainder of 432.
Use 4 as the next digit of our solution. 
Result so far: 163095.4144
If we subtract 1988 from 2420, we get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

The quotient of the division is 163095.4144, and the remainder is 0.00432.