We divide 63242971 by 409
The aim is to understand the frequency of 409 in 63242971.

Let's proceed to step 1:
409 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 409

Going ahead to step 2:
409 can be fit into 63 0 times, resulting in a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Bring next digit (2) of the dividend behind the 63 and repeat the process: 632 / 409

Step 3:
If we divide 632 by 409, we get 1 and a remainder of 223.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 409 from 632, we get 223.
Bring next digit (4) of the dividend behind the 223 and repeat the process: 2234 / 409

Advancing to step 4:
If we divide 2234 by 409, we get 5 and a remainder of 189.
Write down 5 as next digit of the result. 
Result so far: 15.0
Deduct 2045 from 2234 and we're left with 189.
Take the next digit (2) from the dividend and append it to 189, then repeat: 1892 / 409

On to step 5:
409 goes into 1892 4 times with a remainder of 256.
Write down 4 as next digit of the result. 
Result so far: 154.0
If we subtract 1636 from 1892, we get 256.
Bring next digit (9) of the dividend behind the 256 and repeat the process: 2569 / 409

Let's proceed to step 6:
409 can be fit into 2569 6 times, resulting in a remainder of 115.
Put 6 as the next digit of the answer. 
Result so far: 1546.0
The remainder is 115 after subtracting 2454 from 2569.
Append the next digit (7) from the dividend to 115 and continue with: 1157 / 409

Going ahead to step 7:
1157 divided by 409 is 2 with a remainder of 339.
Record the quotient 2 as the next digit in the result. 
Result so far: 15462.0
Subtracting 818 from 1157 leaves us with 339.
Include the next digit (1) from the dividend after 339, then repeat: 3391 / 409

Let's proceed to step 8:
When dividing 3391 by 409, we get 8 with a remainder of 119.
The next digit of our result is 8. 
Result so far: 154628.0
Deduct 3272 from 3391 and we're left with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 9:
409 can be fit into 1190 2 times, resulting in a remainder of 372.
Put 2 as the next digit of the answer. 
Result so far: 154628.2
Deduct 818 from 1190 and we're left with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 10:
The number 409 fits into 3720 9 times, leaving a remainder of 39.
The number 9 becomes the next digit in our result. 
Result so far: 154628.29
If we subtract 3681 from 3720, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 11:
390 divided by 409 is 0 with a remainder of 390.
Use 0 as the next digit of our solution. 
Result so far: 154628.29
If we subtract 0 from 390, we get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 12:
3900 divided by 409 is 9 with a remainder of 219.
Use 9 as the next digit of our solution. 
Result so far: 154628.2909
The remainder is 219 after subtracting 3681 from 3900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Moving on to step 13:
If we divide 2190 by 409, we get 5 and a remainder of 145.
Record the quotient 5 as the next digit in the result. 
Result so far: 154628.29095
Subtract 2045 from 2190 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 14:
409 goes into 1450 3 times with a remainder of 223.
The number 3 becomes the next digit in our result. 
Result so far: 154628.290953
If we take 1227 away from 1450, we end up 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.

Let's proceed to step 15:
If we divide 2230 by 409, we get 5 and a remainder of 185.
Put 5 as the next digit of the answer. 
Result so far: 154628.2909535
Subtract 2045 from 2230 to get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

On to step 16:
The number 409 fits into 1850 4 times, leaving a remainder of 214.
Put 4 as the next digit of the answer. 
Result so far: 154628.29095354
If we subtract 1636 from 1850, we get 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

The final result is 154628.29095354 with a remainder of 2.14e-07.