771380 ÷ 45 
We want to figure out the number of times 771380 can be divided by 45.

On to step 1:
7 divided by 45 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 45

Going ahead to step 2:
77 divided by 45 is 1 with a remainder of 32.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 45 from 77 leaves us with 32.
Grab the next digit (1) from the dividend, add it to 32, then carry on: 321 / 45

Moving on to step 3:
When dividing 321 by 45, we get 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 315 from 321 leaves us with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 45

Let's proceed to step 4:
45 can be fit into 63 1 times, resulting in a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 171.0
Subtracting 45 from 63 leaves us with 18.
Grab the next digit (8) from the dividend, add it to 18, then carry on: 188 / 45

Moving on to step 5:
When dividing 188 by 45, we get 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 1714.0
If we take 180 away from 188, we end up with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 45

Going ahead to step 6:
45 goes into 80 1 times with a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 17141.0
If we take 45 away from 80, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 7:
The number 45 fits into 350 7 times, leaving a remainder of 35.
The next digit of our result is 7. 
Result so far: 17141.7
Deduct 315 from 350 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 8:
The number 45 fits into 350 7 times, leaving a remainder of 35.
The next digit of our result is 7. 
Result so far: 17141.77
Subtract 315 from 350 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final outcome is 17141.77, with a leftover of 0.035.