62391069 divided by 805 
The aim is to understand the frequency of 805 in 62391069.

On to step 1:
6 divided by 805 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 805

On to step 2:
If we divide 62 by 805, we get 0 and a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 62, we get 62.
Include the next digit (3) from the dividend after 62, then repeat: 623 / 805

Advancing to step 3:
When dividing 623 by 805, we get 0 with a remainder of 623.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 623 after subtracting 0 from 623.
Grab the next digit (9) from the dividend, add it to 623, then carry on: 6239 / 805

Step 4:
6239 divided by 805 is 7 with a remainder of 604.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 5635 from 6239 to get 604.
Bring next digit (1) of the dividend behind the 604 and repeat the process: 6041 / 805

Step 5:
805 can be fit into 6041 7 times, resulting in a remainder of 406.
Use 7 as the next digit of our solution. 
Result so far: 77.0
Deduct 5635 from 6041 and we're left with 406.
Bring next digit (0) of the dividend behind the 406 and repeat the process: 4060 / 805

Let's proceed to step 6:
The number 805 fits into 4060 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 775.0
The remainder is 35 after subtracting 4025 from 4060.
Grab the next digit (6) from the dividend, add it to 35, then carry on: 356 / 805

Let's proceed to step 7:
805 goes into 356 0 times with a remainder of 356.
Record the quotient 0 as the next digit in the result. 
Result so far: 7750.0
The remainder is 356 after subtracting 0 from 356.
Append the next digit (9) from the dividend to 356 and continue with: 3569 / 805

Moving on to step 8:
805 can be fit into 3569 4 times, resulting in a remainder of 349.
Write down 4 as next digit of the result. 
Result so far: 77504.0
The remainder is 349 after subtracting 3220 from 3569.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

On to step 9:
If we divide 3490 by 805, we get 4 and a remainder of 270.
Record the quotient 4 as the next digit in the result. 
Result so far: 77504.4
Subtracting 3220 from 3490 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Advancing to step 10:
2700 divided by 805 is 3 with a remainder of 285.
Put 3 as the next digit of the answer. 
Result so far: 77504.43
Subtracting 2415 from 2700 leaves us with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

On to step 11:
805 goes into 2850 3 times with a remainder of 435.
Put 3 as the next digit of the answer. 
Result so far: 77504.433
If we take 2415 away from 2850, we end up with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

The quotient of the division is 77504.433, and the remainder is 0.0435.