73867023 ÷ 145 
The aim is to understand the frequency of 145 in 73867023.

Advancing to step 1:
The number 145 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 145

Moving on to step 2:
145 goes into 73 0 times with a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Fetch the next digit (8) from the dividend, attach it to 73 and continue: 738 / 145

Moving on to step 3:
The number 145 fits into 738 5 times, leaving a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 725 from 738 leaves us with 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 145

Step 4:
The number 145 fits into 136 0 times, leaving a remainder of 136.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we take 0 away from 136, we end up with 136.
Take the next digit (7) from the dividend and append it to 136, then repeat: 1367 / 145

On to step 5:
145 can be fit into 1367 9 times, resulting in a remainder of 62.
Write down 9 as next digit of the result. 
Result so far: 509.0
If we take 1305 away from 1367, we end up with 62.
Grab the next digit (0) from the dividend, add it to 62, then carry on: 620 / 145

On to step 6:
The number 145 fits into 620 4 times, leaving a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 5094.0
Subtracting 580 from 620 leaves us with 40.
Grab the next digit (2) from the dividend, add it to 40, then carry on: 402 / 145

Advancing to step 7:
402 divided by 145 is 2 with a remainder of 112.
Record the quotient 2 as the next digit in the result. 
Result so far: 50942.0
If we take 290 away from 402, we end up with 112.
Take the next digit (3) from the dividend and append it to 112, then repeat: 1123 / 145

Moving on to step 8:
145 can be fit into 1123 7 times, resulting in a remainder of 108.
Write down 7 as next digit of the result. 
Result so far: 509427.0
The remainder is 108 after subtracting 1015 from 1123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 9:
When dividing 1080 by 145, we get 7 with a remainder of 65.
The next digit of our result is 7. 
Result so far: 509427.7
The remainder is 65 after subtracting 1015 from 1080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 10:
145 can be fit into 650 4 times, resulting in a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 509427.74
If we subtract 580 from 650, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 11:
The number 145 fits into 700 4 times, leaving a remainder of 120.
Put 4 as the next digit of the answer. 
Result so far: 509427.744
Subtract 580 from 700 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The quotient of the division is 509427.744, and the remainder is 0.012.