83735408 ÷ 509 
The aim is to understand the frequency of 509 in 83735408.

Moving on to step 1:
When dividing 8 by 509, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 509

Going ahead to step 2:
83 divided by 509 is 0 with a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Take the next digit (7) from the dividend and append it to 83, then repeat: 837 / 509

Advancing to step 3:
The number 509 fits into 837 1 times, leaving a remainder of 328.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 509 from 837 to get 328.
Grab the next digit (3) from the dividend, add it to 328, then carry on: 3283 / 509

Advancing to step 4:
When dividing 3283 by 509, we get 6 with a remainder of 229.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 3054 away from 3283, we end up with 229.
Fetch the next digit (5) from the dividend, attach it to 229 and continue: 2295 / 509

Advancing to step 5:
When dividing 2295 by 509, we get 4 with a remainder of 259.
The number 4 becomes the next digit in our result. 
Result so far: 164.0
The remainder is 259 after subtracting 2036 from 2295.
Take the next digit (4) from the dividend and append it to 259, then repeat: 2594 / 509

Going ahead to step 6:
If we divide 2594 by 509, we get 5 and a remainder of 49.
The number 5 becomes the next digit in our result. 
Result so far: 1645.0
Deduct 2545 from 2594 and we're left with 49.
Grab the next digit (0) from the dividend, add it to 49, then carry on: 490 / 509

On to step 7:
509 can be fit into 490 0 times, resulting in a remainder of 490.
Write down 0 as next digit of the result. 
Result so far: 16450.0
Subtract 0 from 490 to get 490.
Take the next digit (8) from the dividend and append it to 490, then repeat: 4908 / 509

Let's proceed to step 8:
509 can be fit into 4908 9 times, resulting in a remainder of 327.
Use 9 as the next digit of our solution. 
Result so far: 164509.0
Deduct 4581 from 4908 and we're left with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Going ahead to step 9:
The number 509 fits into 3270 6 times, leaving a remainder of 216.
The next digit of our result is 6. 
Result so far: 164509.6
If we subtract 3054 from 3270, we get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 10:
If we divide 2160 by 509, we get 4 and a remainder of 124.
Use 4 as the next digit of our solution. 
Result so far: 164509.64
The remainder is 124 after subtracting 2036 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 11:
509 goes into 1240 2 times with a remainder of 222.
Write down 2 as next digit of the result. 
Result so far: 164509.642
The remainder is 222 after subtracting 1018 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Let's proceed to step 12:
The number 509 fits into 2220 4 times, leaving a remainder of 184.
Record the quotient 4 as the next digit in the result. 
Result so far: 164509.6424
The remainder is 184 after subtracting 2036 from 2220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Going ahead to step 13:
1840 divided by 509 is 3 with a remainder of 313.
The next digit of our result is 3. 
Result so far: 164509.64243
Deduct 1527 from 1840 and we're left with 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Moving on to step 14:
3130 divided by 509 is 6 with a remainder of 76.
The next digit of our result is 6. 
Result so far: 164509.642436
Subtract 3054 from 3130 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 15:
760 divided by 509 is 1 with a remainder of 251.
Write down 1 as next digit of the result. 
Result so far: 164509.6424361
Subtract 509 from 760 to get 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Let's proceed to step 16:
When dividing 2510 by 509, we get 4 with a remainder of 474.
The number 4 becomes the next digit in our result. 
Result so far: 164509.64243614
If we take 2036 away from 2510, we end up with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

The quotient of the division is 164509.64243614, and the remainder is 4.74e-07.