We look at the division of 7324840 by 424 
The aim is to understand the frequency of 424 in 7324840.

Going ahead to step 1:
424 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 424

Moving on to step 2:
The number 424 fits into 73 0 times, leaving a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Bring next digit (2) of the dividend behind the 73 and repeat the process: 732 / 424

Moving on to step 3:
732 divided by 424 is 1 with a remainder of 308.
The next digit of our result is 1. 
Result so far: 1.0
If we take 424 away from 732, we end up with 308.
Grab the next digit (4) from the dividend, add it to 308, then carry on: 3084 / 424

Moving on to step 4:
424 can be fit into 3084 7 times, resulting in a remainder of 116.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Deduct 2968 from 3084 and we're left with 116.
Fetch the next digit (8) from the dividend, attach it to 116 and continue: 1168 / 424

On to step 5:
424 goes into 1168 2 times with a remainder of 320.
The number 2 becomes the next digit in our result. 
Result so far: 172.0
Subtract 848 from 1168 to get 320.
Fetch the next digit (4) from the dividend, attach it to 320 and continue: 3204 / 424

On to step 6:
424 can be fit into 3204 7 times, resulting in a remainder of 236.
Use 7 as the next digit of our solution. 
Result so far: 1727.0
If we subtract 2968 from 3204, we get 236.
Take the next digit (0) from the dividend and append it to 236, then repeat: 2360 / 424

Advancing to step 7:
The number 424 fits into 2360 5 times, leaving a remainder of 240.
Write down 5 as next digit of the result. 
Result so far: 17275.0
If we subtract 2120 from 2360, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 8:
424 can be fit into 2400 5 times, resulting in a remainder of 280.
Record the quotient 5 as the next digit in the result. 
Result so far: 17275.5
If we subtract 2120 from 2400, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 9:
If we divide 2800 by 424, we get 6 and a remainder of 256.
Use 6 as the next digit of our solution. 
Result so far: 17275.56
The remainder is 256 after subtracting 2544 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 10:
When dividing 2560 by 424, we get 6 with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 17275.566
Deduct 2544 from 2560 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 17275.566, with a leftover of 0.0016.