We look at the division of 75999441 by 447 
The aim is to understand the frequency of 447 in 75999441.

Advancing to step 1:
7 divided by 447 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 447

Let's proceed to step 2:
The number 447 fits into 75 0 times, leaving a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 75, we get 75.
Take the next digit (9) from the dividend and append it to 75, then repeat: 759 / 447

Going ahead to step 3:
When dividing 759 by 447, we get 1 with a remainder of 312.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 447 from 759 leaves us with 312.
Grab the next digit (9) from the dividend, add it to 312, then carry on: 3129 / 447

Going ahead to step 4:
447 goes into 3129 7 times with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 3129 away from 3129, we end up with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 447

Moving on to step 5:
If we divide 9 by 447, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 170.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 447

Moving on to step 6:
If we divide 94 by 447, we get 0 and a remainder of 94.
Record the quotient 0 as the next digit in the result. 
Result so far: 1700.0
Subtract 0 from 94 to get 94.
Fetch the next digit (4) from the dividend, attach it to 94 and continue: 944 / 447

Going ahead to step 7:
447 can be fit into 944 2 times, resulting in a remainder of 50.
Write down 2 as next digit of the result. 
Result so far: 17002.0
Subtracting 894 from 944 leaves us with 50.
Take the next digit (1) from the dividend and append it to 50, then repeat: 501 / 447

Going ahead to step 8:
When dividing 501 by 447, we get 1 with a remainder of 54.
The next digit of our result is 1. 
Result so far: 170021.0
If we subtract 447 from 501, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 9:
When dividing 540 by 447, we get 1 with a remainder of 93.
The next digit of our result is 1. 
Result so far: 170021.1
Subtracting 447 from 540 leaves us with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Advancing to step 10:
If we divide 930 by 447, we get 2 and a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 170021.12
Deduct 894 from 930 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 11:
447 goes into 360 0 times with a remainder of 360.
Write down 0 as next digit of the result. 
Result so far: 170021.12
Deduct 0 from 360 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 12:
If we divide 3600 by 447, we get 8 and a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 170021.1208
Subtracting 3576 from 3600 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 13:
240 divided by 447 is 0 with a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 170021.1208
Subtract 0 from 240 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 14:
2400 divided by 447 is 5 with a remainder of 165.
Put 5 as the next digit of the answer. 
Result so far: 170021.120805
Deduct 2235 from 2400 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Step 15:
447 goes into 1650 3 times with a remainder of 309.
Use 3 as the next digit of our solution. 
Result so far: 170021.1208053
If we subtract 1341 from 1650, we get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

On to step 16:
When dividing 3090 by 447, we get 6 with a remainder of 408.
Put 6 as the next digit of the answer. 
Result so far: 170021.12080536
If we take 2682 away from 3090, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

After the division, we end up with 170021.12080536 and a remainder of 4.08e-07.