We look at the division of 65594193 by 423 
The aim is to understand the frequency of 423 in 65594193.

On to step 1:
The number 423 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 423

Advancing to step 2:
423 goes into 65 0 times with a remainder of 65.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 65 leaves us with 65.
Append the next digit (5) from the dividend to 65 and continue with: 655 / 423

Step 3:
When dividing 655 by 423, we get 1 with a remainder of 232.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 423 from 655 to get 232.
Append the next digit (9) from the dividend to 232 and continue with: 2329 / 423

Let's proceed to step 4:
423 goes into 2329 5 times with a remainder of 214.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 2115 from 2329 and we're left with 214.
Bring next digit (4) of the dividend behind the 214 and repeat the process: 2144 / 423

Let's proceed to step 5:
When dividing 2144 by 423, we get 5 with a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 155.0
If we take 2115 away from 2144, we end up with 29.
Grab the next digit (1) from the dividend, add it to 29, then carry on: 291 / 423

Step 6:
If we divide 291 by 423, we get 0 and a remainder of 291.
Record the quotient 0 as the next digit in the result. 
Result so far: 1550.0
If we subtract 0 from 291, we get 291.
Take the next digit (9) from the dividend and append it to 291, then repeat: 2919 / 423

Step 7:
423 goes into 2919 6 times with a remainder of 381.
Write down 6 as next digit of the result. 
Result so far: 15506.0
Deduct 2538 from 2919 and we're left with 381.
Append the next digit (3) from the dividend to 381 and continue with: 3813 / 423

Let's proceed to step 8:
423 can be fit into 3813 9 times, resulting in a remainder of 6.
The next digit of our result is 9. 
Result so far: 155069.0
Subtracting 3807 from 3813 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
If we divide 60 by 423, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 155069.0
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 10:
If we divide 600 by 423, we get 1 and a remainder of 177.
The number 1 becomes the next digit in our result. 
Result so far: 155069.01
Subtracting 423 from 600 leaves us with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

On to step 11:
423 can be fit into 1770 4 times, resulting in a remainder of 78.
Record the quotient 4 as the next digit in the result. 
Result so far: 155069.014
Deduct 1692 from 1770 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 12:
423 can be fit into 780 1 times, resulting in a remainder of 357.
Write down 1 as next digit of the result. 
Result so far: 155069.0141
Subtracting 423 from 780 leaves us with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Advancing to step 13:
The number 423 fits into 3570 8 times, leaving a remainder of 186.
The next digit of our result is 8. 
Result so far: 155069.01418
The remainder is 186 after subtracting 3384 from 3570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Moving on to step 14:
423 goes into 1860 4 times with a remainder of 168.
Put 4 as the next digit of the answer. 
Result so far: 155069.014184
If we subtract 1692 from 1860, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Let's proceed to step 15:
The number 423 fits into 1680 3 times, leaving a remainder of 411.
Record the quotient 3 as the next digit in the result. 
Result so far: 155069.0141843
Deduct 1269 from 1680 and we're left with 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

Let's proceed to step 16:
If we divide 4110 by 423, we get 9 and a remainder of 303.
The next digit of our result is 9. 
Result so far: 155069.01418439
If we take 3807 away from 4110, we end up with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

The final outcome is 155069.01418439, with a leftover of 3.03e-07.