73996570 divided by 18 
We want to figure out the number of times 73996570 can be divided by 18.

Step 1:
The number 18 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 18

Step 2:
When dividing 73 by 18, we get 4 with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 1 after subtracting 72 from 73.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 18

Advancing to step 3:
19 divided by 18 is 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 41.0
If we subtract 18 from 19, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 18

On to step 4:
18 can be fit into 19 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 411.0
The remainder is 1 after subtracting 18 from 19.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 18

Let's proceed to step 5:
The number 18 fits into 16 0 times, leaving a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 4110.0
Subtracting 0 from 16 leaves us with 16.
Grab the next digit (5) from the dividend, add it to 16, then carry on: 165 / 18

On to step 6:
18 can be fit into 165 9 times, resulting in a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 41109.0
Subtracting 162 from 165 leaves us with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 18

Going ahead to step 7:
When dividing 37 by 18, we get 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 411092.0
If we take 36 away from 37, we end up with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 18

Going ahead to step 8:
18 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 4110920.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
100 divided by 18 is 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 4110920.5
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
If we divide 100 by 18, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 4110920.55
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 4110920.55 with a remaining 0.01.