We look at the division of 445985 by 73 
The aim is to understand the frequency of 73 in 445985.

Step 1:
73 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 73

On to step 2:
If we divide 44 by 73, we get 0 and a remainder of 44.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 44, we get 44.
Grab the next digit (5) from the dividend, add it to 44, then carry on: 445 / 73

Step 3:
445 divided by 73 is 6 with a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 438 from 445 to get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 73

On to step 4:
When dividing 79 by 73, we get 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 61.0
If we subtract 73 from 79, we get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 73

Step 5:
73 can be fit into 68 0 times, resulting in a remainder of 68.
Record the quotient 0 as the next digit in the result. 
Result so far: 610.0
If we take 0 away from 68, we end up with 68.
Append the next digit (5) from the dividend to 68 and continue with: 685 / 73

Let's proceed to step 6:
685 divided by 73 is 9 with a remainder of 28.
The next digit of our result is 9. 
Result so far: 6109.0
The remainder is 28 after subtracting 657 from 685.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 7:
73 can be fit into 280 3 times, resulting in a remainder of 61.
Write down 3 as next digit of the result. 
Result so far: 6109.3
If we take 219 away from 280, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 8:
610 divided by 73 is 8 with a remainder of 26.
Use 8 as the next digit of our solution. 
Result so far: 6109.38
If we subtract 584 from 610, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 9:
260 divided by 73 is 3 with a remainder of 41.
Write down 3 as next digit of the result. 
Result so far: 6109.383
Subtracting 219 from 260 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 10:
410 divided by 73 is 5 with a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 6109.3835
If we take 365 away from 410, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 11:
When dividing 450 by 73, we get 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 6109.38356
The remainder is 12 after subtracting 438 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 12:
120 divided by 73 is 1 with a remainder of 47.
Use 1 as the next digit of our solution. 
Result so far: 6109.383561
The remainder is 47 after subtracting 73 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 13:
The number 73 fits into 470 6 times, leaving a remainder of 32.
The next digit of our result is 6. 
Result so far: 6109.3835616
Subtracting 438 from 470 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 14:
73 goes into 320 4 times with a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 6109.38356164
If we take 292 away from 320, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Our division results in 6109.38356164 with a remaining 2.8e-08.