72166046 divided by 145 
The aim is to understand the frequency of 145 in 72166046.

Going ahead to step 1:
If we divide 7 by 145, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 145

Moving on to step 2:
If we divide 72 by 145, we get 0 and a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Append the next digit (1) from the dividend to 72 and continue with: 721 / 145

Advancing to step 3:
145 goes into 721 4 times with a remainder of 141.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 580 from 721 leaves us with 141.
Take the next digit (6) from the dividend and append it to 141, then repeat: 1416 / 145

On to step 4:
145 can be fit into 1416 9 times, resulting in a remainder of 111.
Put 9 as the next digit of the answer. 
Result so far: 49.0
Subtract 1305 from 1416 to get 111.
Include the next digit (6) from the dividend after 111, then repeat: 1116 / 145

Step 5:
1116 divided by 145 is 7 with a remainder of 101.
The next digit of our result is 7. 
Result so far: 497.0
Deduct 1015 from 1116 and we're left with 101.
Append the next digit (0) from the dividend to 101 and continue with: 1010 / 145

Going ahead to step 6:
When dividing 1010 by 145, we get 6 with a remainder of 140.
The number 6 becomes the next digit in our result. 
Result so far: 4976.0
Subtracting 870 from 1010 leaves us with 140.
Include the next digit (4) from the dividend after 140, then repeat: 1404 / 145

On to step 7:
The number 145 fits into 1404 9 times, leaving a remainder of 99.
Put 9 as the next digit of the answer. 
Result so far: 49769.0
If we take 1305 away from 1404, we end up with 99.
Grab the next digit (6) from the dividend, add it to 99, then carry on: 996 / 145

Going ahead to step 8:
When dividing 996 by 145, we get 6 with a remainder of 126.
The number 6 becomes the next digit in our result. 
Result so far: 497696.0
If we subtract 870 from 996, we get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 9:
145 can be fit into 1260 8 times, resulting in a remainder of 100.
Use 8 as the next digit of our solution. 
Result so far: 497696.8
Subtract 1160 from 1260 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 10:
1000 divided by 145 is 6 with a remainder of 130.
Record the quotient 6 as the next digit in the result. 
Result so far: 497696.86
The remainder is 130 after subtracting 870 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 11:
1300 divided by 145 is 8 with a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 497696.868
If we take 1160 away from 1300, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 12:
145 can be fit into 1400 9 times, resulting in a remainder of 95.
The number 9 becomes the next digit in our result. 
Result so far: 497696.8689
Subtract 1305 from 1400 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 13:
145 goes into 950 6 times with a remainder of 80.
Use 6 as the next digit of our solution. 
Result so far: 497696.86896
Subtract 870 from 950 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 14:
If we divide 800 by 145, we get 5 and a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 497696.868965
Subtracting 725 from 800 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 15:
If we divide 750 by 145, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 497696.8689655
Subtract 725 from 750 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

After the division, we end up with 497696.8689655 and a remainder of 2.5e-07.