We look at the division of 72919308 by 805 
The aim is to understand the frequency of 805 in 72919308.

Step 1:
The number 805 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 805

Moving on to step 2:
805 goes into 72 0 times with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Include the next digit (9) from the dividend after 72, then repeat: 729 / 805

On to step 3:
If we divide 729 by 805, we get 0 and a remainder of 729.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 729, we end up with 729.
Grab the next digit (1) from the dividend, add it to 729, then carry on: 7291 / 805

Advancing to step 4:
If we divide 7291 by 805, we get 9 and a remainder of 46.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we take 7245 away from 7291, we end up with 46.
Bring next digit (9) of the dividend behind the 46 and repeat the process: 469 / 805

On to step 5:
If we divide 469 by 805, we get 0 and a remainder of 469.
Write down 0 as next digit of the result. 
Result so far: 90.0
Subtract 0 from 469 to get 469.
Fetch the next digit (3) from the dividend, attach it to 469 and continue: 4693 / 805

Going ahead to step 6:
When dividing 4693 by 805, we get 5 with a remainder of 668.
Put 5 as the next digit of the answer. 
Result so far: 905.0
Deduct 4025 from 4693 and we're left with 668.
Bring next digit (0) of the dividend behind the 668 and repeat the process: 6680 / 805

On to step 7:
If we divide 6680 by 805, we get 8 and a remainder of 240.
The next digit of our result is 8. 
Result so far: 9058.0
The remainder is 240 after subtracting 6440 from 6680.
Grab the next digit (8) from the dividend, add it to 240, then carry on: 2408 / 805

On to step 8:
805 can be fit into 2408 2 times, resulting in a remainder of 798.
The number 2 becomes the next digit in our result. 
Result so far: 90582.0
Subtracting 1610 from 2408 leaves us with 798.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7980, and continue the process.

Step 9:
The number 805 fits into 7980 9 times, leaving a remainder of 735.
Use 9 as the next digit of our solution. 
Result so far: 90582.9
If we take 7245 away from 7980, we end up with 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

Going ahead to step 10:
The number 805 fits into 7350 9 times, leaving a remainder of 105.
The next digit of our result is 9. 
Result so far: 90582.99
If we subtract 7245 from 7350, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The quotient of the division is 90582.99, and the remainder is 0.105.