We're dividing 771940 by 45 
Let's see how many times 45 fits into 771940.

Moving on to step 1:
If we divide 7 by 45, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 45

Moving on to step 2:
45 goes into 77 1 times with a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 32 after subtracting 45 from 77.
Bring next digit (1) of the dividend behind the 32 and repeat the process: 321 / 45

Going ahead to step 3:
When dividing 321 by 45, we get 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 17.0
The remainder is 6 after subtracting 315 from 321.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 45

Advancing to step 4:
69 divided by 45 is 1 with a remainder of 24.
The next digit of our result is 1. 
Result so far: 171.0
If we take 45 away from 69, we end up with 24.
Bring next digit (4) of the dividend behind the 24 and repeat the process: 244 / 45

Moving on to step 5:
45 goes into 244 5 times with a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 1715.0
Deduct 225 from 244 and we're left with 19.
Fetch the next digit (0) from the dividend, attach it to 19 and continue: 190 / 45

Step 6:
45 can be fit into 190 4 times, resulting in a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 17154.0
Subtract 180 from 190 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.

Moving on to step 7:
If we divide 100 by 45, we get 2 and a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 17154.2
Subtracting 90 from 100 leaves us 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.

Step 8:
The number 45 fits into 100 2 times, leaving a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 17154.22
If we take 90 away from 100, we end up 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.

The final result is 17154.22 with a remainder of 0.01.