We're dividing 770396 by 45 
We're looking to find how many times 45 goes into 770396.

On to step 1:
If we divide 7 by 45, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 45

Going ahead to step 2:
77 divided by 45 is 1 with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 45 from 77, we get 32.
Include the next digit (0) from the dividend after 32, then repeat: 320 / 45

Moving on to step 3:
The number 45 fits into 320 7 times, leaving a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 315 from 320 and we're left with 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 45

Going ahead to step 4:
45 goes into 53 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 171.0
If we take 45 away from 53, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 45

Going ahead to step 5:
When dividing 89 by 45, we get 1 with a remainder of 44.
Record the quotient 1 as the next digit in the result. 
Result so far: 1711.0
Subtracting 45 from 89 leaves us with 44.
Take the next digit (6) from the dividend and append it to 44, then repeat: 446 / 45

Going ahead to step 6:
446 divided by 45 is 9 with a remainder of 41.
The next digit of our result is 9. 
Result so far: 17119.0
If we take 405 away from 446, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 7:
410 divided by 45 is 9 with a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 17119.9
The remainder is 5 after subtracting 405 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
45 goes into 50 1 times with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 17119.91
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
When dividing 50 by 45, we get 1 with a remainder of 5.
The next digit of our result is 1. 
Result so far: 17119.911
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 17119.911 and a remainder of 0.0005.