583899 divided by 51 
The aim is to understand the frequency of 51 in 583899.

On to step 1:
When dividing 5 by 51, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 51

Advancing to step 2:
51 can be fit into 58 1 times, resulting in a remainder of 7.
The next digit of our result is 1. 
Result so far: 1.0
If we take 51 away from 58, we end up with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 51

Moving on to step 3:
51 can be fit into 73 1 times, resulting in a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 51 from 73 leaves us with 22.
Bring next digit (8) of the dividend behind the 22 and repeat the process: 228 / 51

Let's proceed to step 4:
51 can be fit into 228 4 times, resulting in a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 114.0
Deduct 204 from 228 and we're left with 24.
Take the next digit (9) from the dividend and append it to 24, then repeat: 249 / 51

Moving on to step 5:
51 goes into 249 4 times with a remainder of 45.
Write down 4 as next digit of the result. 
Result so far: 1144.0
If we subtract 204 from 249, we get 45.
Grab the next digit (9) from the dividend, add it to 45, then carry on: 459 / 51

Advancing to step 6:
51 goes into 459 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 11449.0
The remainder is 0 after subtracting 459 from 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
The number 51 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 11449.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
51 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 11449.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 11449.0 with a balance of 0.0.