We divide 83739954 by 409
The aim is to understand the frequency of 409 in 83739954.

Step 1:
8 divided by 409 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 409

Let's proceed to step 2:
409 can be fit into 83 0 times, resulting in a remainder of 83.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Fetch the next digit (7) from the dividend, attach it to 83 and continue: 837 / 409

Going ahead to step 3:
837 divided by 409 is 2 with a remainder of 19.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 818 from 837 to get 19.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 409

Step 4:
409 can be fit into 193 0 times, resulting in a remainder of 193.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Deduct 0 from 193 and we're left with 193.
Bring next digit (9) of the dividend behind the 193 and repeat the process: 1939 / 409

Step 5:
409 can be fit into 1939 4 times, resulting in a remainder of 303.
The next digit of our result is 4. 
Result so far: 204.0
If we take 1636 away from 1939, we end up with 303.
Grab the next digit (9) from the dividend, add it to 303, then carry on: 3039 / 409

Advancing to step 6:
409 goes into 3039 7 times with a remainder of 176.
The next digit of our result is 7. 
Result so far: 2047.0
If we subtract 2863 from 3039, we get 176.
Take the next digit (5) from the dividend and append it to 176, then repeat: 1765 / 409

On to step 7:
1765 divided by 409 is 4 with a remainder of 129.
Use 4 as the next digit of our solution. 
Result so far: 20474.0
Deduct 1636 from 1765 and we're left with 129.
Append the next digit (4) from the dividend to 129 and continue with: 1294 / 409

On to step 8:
When dividing 1294 by 409, we get 3 with a remainder of 67.
The next digit of our result is 3. 
Result so far: 204743.0
If we subtract 1227 from 1294, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 9:
409 goes into 670 1 times with a remainder of 261.
The next digit of our result is 1. 
Result so far: 204743.1
The remainder is 261 after subtracting 409 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Advancing to step 10:
2610 divided by 409 is 6 with a remainder of 156.
Record the quotient 6 as the next digit in the result. 
Result so far: 204743.16
The remainder is 156 after subtracting 2454 from 2610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

On to step 11:
1560 divided by 409 is 3 with a remainder of 333.
Write down 3 as next digit of the result. 
Result so far: 204743.163
The remainder is 333 after subtracting 1227 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

On to step 12:
409 can be fit into 3330 8 times, resulting in a remainder of 58.
The next digit of our result is 8. 
Result so far: 204743.1638
If we subtract 3272 from 3330, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 13:
If we divide 580 by 409, we get 1 and a remainder of 171.
The number 1 becomes the next digit in our result. 
Result so far: 204743.16381
If we take 409 away from 580, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Going ahead to step 14:
409 can be fit into 1710 4 times, resulting in a remainder of 74.
The next digit of our result is 4. 
Result so far: 204743.163814
Subtracting 1636 from 1710 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 15:
409 can be fit into 740 1 times, resulting in a remainder of 331.
The number 1 becomes the next digit in our result. 
Result so far: 204743.1638141
Subtracting 409 from 740 leaves us with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Step 16:
When dividing 3310 by 409, we get 8 with a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 204743.16381418
If we take 3272 away from 3310, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

After the division, we end up with 204743.16381418 and a remainder of 3.8e-08.