28450497 divided by 405 
The aim is to understand the frequency of 405 in 28450497.

Advancing to step 1:
2 divided by 405 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 405

Going ahead to step 2:
The number 405 fits into 28 0 times, leaving a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Append the next digit (4) from the dividend to 28 and continue with: 284 / 405

Moving on to step 3:
When dividing 284 by 405, we get 0 with a remainder of 284.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 284, we end up with 284.
Include the next digit (5) from the dividend after 284, then repeat: 2845 / 405

Moving on to step 4:
If we divide 2845 by 405, we get 7 and a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 2835 from 2845 and we're left with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 405

Step 5:
405 goes into 100 0 times with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 70.0
If we subtract 0 from 100, we get 100.
Take the next digit (4) from the dividend and append it to 100, then repeat: 1004 / 405

Let's proceed to step 6:
When dividing 1004 by 405, we get 2 with a remainder of 194.
Write down 2 as next digit of the result. 
Result so far: 702.0
Subtract 810 from 1004 to get 194.
Grab the next digit (9) from the dividend, add it to 194, then carry on: 1949 / 405

Going ahead to step 7:
405 goes into 1949 4 times with a remainder of 329.
Put 4 as the next digit of the answer. 
Result so far: 7024.0
If we take 1620 away from 1949, we end up with 329.
Append the next digit (7) from the dividend to 329 and continue with: 3297 / 405

Let's proceed to step 8:
If we divide 3297 by 405, we get 8 and a remainder of 57.
Use 8 as the next digit of our solution. 
Result so far: 70248.0
If we subtract 3240 from 3297, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 9:
405 can be fit into 570 1 times, resulting in a remainder of 165.
Write down 1 as next digit of the result. 
Result so far: 70248.1
Subtracting 405 from 570 leaves us with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Let's proceed to step 10:
The number 405 fits into 1650 4 times, leaving a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 70248.14
Subtract 1620 from 1650 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 11:
300 divided by 405 is 0 with a remainder of 300.
Put 0 as the next digit of the answer. 
Result so far: 70248.14
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 12:
When dividing 3000 by 405, we get 7 with a remainder of 165.
Write down 7 as next digit of the result. 
Result so far: 70248.1407
If we subtract 2835 from 3000, we get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Let's proceed to step 13:
If we divide 1650 by 405, we get 4 and a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 70248.14074
If we subtract 1620 from 1650, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
If we divide 300 by 405, we get 0 and a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 70248.14074
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 15:
The number 405 fits into 3000 7 times, leaving a remainder of 165.
The number 7 becomes the next digit in our result. 
Result so far: 70248.1407407
Deduct 2835 from 3000 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

On to step 16:
The number 405 fits into 1650 4 times, leaving a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 70248.14074074
Deduct 1620 from 1650 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 70248.14074074 with a remainder of 3e-08.