We look at the division of 58437633 by 583 
The aim is to understand the frequency of 583 in 58437633.

Let's proceed to step 1:
5 divided by 583 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 583

Advancing to step 2:
If we divide 58 by 583, we get 0 and a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 58 and we're left with 58.
Take the next digit (4) from the dividend and append it to 58, then repeat: 584 / 583

On to step 3:
583 goes into 584 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 583 from 584 leaves us with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 583

Let's proceed to step 4:
583 can be fit into 13 0 times, resulting in a remainder of 13.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 13 to get 13.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 583

Advancing to step 5:
583 can be fit into 137 0 times, resulting in a remainder of 137.
Use 0 as the next digit of our solution. 
Result so far: 100.0
Subtract 0 from 137 to get 137.
Grab the next digit (6) from the dividend, add it to 137, then carry on: 1376 / 583

On to step 6:
When dividing 1376 by 583, we get 2 with a remainder of 210.
Put 2 as the next digit of the answer. 
Result so far: 1002.0
Deduct 1166 from 1376 and we're left with 210.
Bring next digit (3) of the dividend behind the 210 and repeat the process: 2103 / 583

Let's proceed to step 7:
583 goes into 2103 3 times with a remainder of 354.
Put 3 as the next digit of the answer. 
Result so far: 10023.0
The remainder is 354 after subtracting 1749 from 2103.
Take the next digit (3) from the dividend and append it to 354, then repeat: 3543 / 583

Step 8:
583 goes into 3543 6 times with a remainder of 45.
Record the quotient 6 as the next digit in the result. 
Result so far: 100236.0
The remainder is 45 after subtracting 3498 from 3543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 9:
The number 583 fits into 450 0 times, leaving a remainder of 450.
The number 0 becomes the next digit in our result. 
Result so far: 100236.0
Deduct 0 from 450 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

On to step 10:
583 can be fit into 4500 7 times, resulting in a remainder of 419.
Put 7 as the next digit of the answer. 
Result so far: 100236.07
The remainder is 419 after subtracting 4081 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Advancing to step 11:
583 goes into 4190 7 times with a remainder of 109.
Use 7 as the next digit of our solution. 
Result so far: 100236.077
Deduct 4081 from 4190 and we're left with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

The quotient of the division is 100236.077, and the remainder is 0.0109.