73418358 ÷ 390 
We want to figure out the number of times 73418358 can be divided by 390.

Let's proceed to step 1:
7 divided by 390 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 390

On to step 2:
The number 390 fits into 73 0 times, leaving a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Append the next digit (4) from the dividend to 73 and continue with: 734 / 390

Advancing to step 3:
The number 390 fits into 734 1 times, leaving a remainder of 344.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 390 from 734 and we're left with 344.
Include the next digit (1) from the dividend after 344, then repeat: 3441 / 390

Step 4:
The number 390 fits into 3441 8 times, leaving a remainder of 321.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 3120 from 3441 leaves us with 321.
Include the next digit (8) from the dividend after 321, then repeat: 3218 / 390

Step 5:
3218 divided by 390 is 8 with a remainder of 98.
The next digit of our result is 8. 
Result so far: 188.0
If we subtract 3120 from 3218, we get 98.
Include the next digit (3) from the dividend after 98, then repeat: 983 / 390

On to step 6:
390 goes into 983 2 times with a remainder of 203.
The next digit of our result is 2. 
Result so far: 1882.0
If we subtract 780 from 983, we get 203.
Append the next digit (5) from the dividend to 203 and continue with: 2035 / 390

On to step 7:
390 can be fit into 2035 5 times, resulting in a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 18825.0
Deduct 1950 from 2035 and we're left with 85.
Include the next digit (8) from the dividend after 85, then repeat: 858 / 390

Advancing to step 8:
The number 390 fits into 858 2 times, leaving a remainder of 78.
Put 2 as the next digit of the answer. 
Result so far: 188252.0
The remainder is 78 after subtracting 780 from 858.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 9:
780 divided by 390 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 188252.2
If we take 780 away from 780, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
When dividing 0 by 390, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 188252.2
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
If we divide 0 by 390, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 188252.2
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 188252.2 with a remaining 0.0.