553623 divided by 73 
The aim is to understand the frequency of 73 in 553623.

Moving on to step 1:
The number 73 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 73

On to step 2:
73 can be fit into 55 0 times, resulting in a remainder of 55.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 55 to get 55.
Append the next digit (3) from the dividend to 55 and continue with: 553 / 73

Let's proceed to step 3:
When dividing 553 by 73, we get 7 with a remainder of 42.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 511 from 553, we get 42.
Take the next digit (6) from the dividend and append it to 42, then repeat: 426 / 73

Moving on to step 4:
If we divide 426 by 73, we get 5 and a remainder of 61.
Write down 5 as next digit of the result. 
Result so far: 75.0
If we subtract 365 from 426, we get 61.
Append the next digit (2) from the dividend to 61 and continue with: 612 / 73

Step 5:
If we divide 612 by 73, we get 8 and a remainder of 28.
The next digit of our result is 8. 
Result so far: 758.0
Subtract 584 from 612 to get 28.
Append the next digit (3) from the dividend to 28 and continue with: 283 / 73

Going ahead to step 6:
283 divided by 73 is 3 with a remainder of 64.
Write down 3 as next digit of the result. 
Result so far: 7583.0
Subtracting 219 from 283 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 7:
If we divide 640 by 73, we get 8 and a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 7583.8
If we subtract 584 from 640, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 8:
560 divided by 73 is 7 with a remainder of 49.
The number 7 becomes the next digit in our result. 
Result so far: 7583.87
Subtracting 511 from 560 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 9:
The number 73 fits into 490 6 times, leaving a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 7583.876
Subtract 438 from 490 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 10:
When dividing 520 by 73, we get 7 with a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 7583.8767
Deduct 511 from 520 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 11:
When dividing 90 by 73, we get 1 with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 7583.87671
If we subtract 73 from 90, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 12:
When dividing 170 by 73, we get 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 7583.876712
If we subtract 146 from 170, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 13:
If we divide 240 by 73, we get 3 and a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 7583.8767123
Subtract 219 from 240 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 14:
The number 73 fits into 210 2 times, leaving a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 7583.87671232
Subtracting 146 from 210 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

In conclusion, the division gives 7583.87671232 with a balance of 6.4e-08.