We look at the division of 51598281 by 344 
The aim is to understand the frequency of 344 in 51598281.

Advancing to step 1:
5 divided by 344 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 344

Moving on to step 2:
344 goes into 51 0 times with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Take the next digit (5) from the dividend and append it to 51, then repeat: 515 / 344

Step 3:
344 can be fit into 515 1 times, resulting in a remainder of 171.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 344 from 515 and we're left with 171.
Grab the next digit (9) from the dividend, add it to 171, then carry on: 1719 / 344

On to step 4:
If we divide 1719 by 344, we get 4 and a remainder of 343.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtract 1376 from 1719 to get 343.
Include the next digit (8) from the dividend after 343, then repeat: 3438 / 344

Going ahead to step 5:
If we divide 3438 by 344, we get 9 and a remainder of 342.
Record the quotient 9 as the next digit in the result. 
Result so far: 149.0
If we subtract 3096 from 3438, we get 342.
Bring next digit (2) of the dividend behind the 342 and repeat the process: 3422 / 344

Moving on to step 6:
3422 divided by 344 is 9 with a remainder of 326.
Put 9 as the next digit of the answer. 
Result so far: 1499.0
The remainder is 326 after subtracting 3096 from 3422.
Include the next digit (8) from the dividend after 326, then repeat: 3268 / 344

Moving on to step 7:
344 goes into 3268 9 times with a remainder of 172.
The next digit of our result is 9. 
Result so far: 14999.0
Subtracting 3096 from 3268 leaves us with 172.
Fetch the next digit (1) from the dividend, attach it to 172 and continue: 1721 / 344

Going ahead to step 8:
When dividing 1721 by 344, we get 5 with a remainder of 1.
The next digit of our result is 5. 
Result so far: 149995.0
Subtracting 1720 from 1721 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
344 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 149995.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
100 divided by 344 is 0 with a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 149995.0
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final result is 149995.0 with a remainder of 0.1.