We're dividing 78755464 by 873 
We want to figure out the number of times 78755464 can be divided by 873.

Moving on to step 1:
If we divide 7 by 873, 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 take 0 away from 7, we end up with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 873

Step 2:
When dividing 78 by 873, we get 0 with a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Fetch the next digit (7) from the dividend, attach it to 78 and continue: 787 / 873

Step 3:
The number 873 fits into 787 0 times, leaving a remainder of 787.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 787, we end up with 787.
Bring next digit (5) of the dividend behind the 787 and repeat the process: 7875 / 873

Going ahead to step 4:
873 goes into 7875 9 times with a remainder of 18.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 7857 from 7875 to get 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 873

Going ahead to step 5:
The number 873 fits into 185 0 times, leaving a remainder of 185.
Record the quotient 0 as the next digit in the result. 
Result so far: 90.0
If we subtract 0 from 185, we get 185.
Bring next digit (4) of the dividend behind the 185 and repeat the process: 1854 / 873

Step 6:
873 goes into 1854 2 times with a remainder of 108.
Use 2 as the next digit of our solution. 
Result so far: 902.0
If we take 1746 away from 1854, we end up with 108.
Append the next digit (6) from the dividend to 108 and continue with: 1086 / 873

Advancing to step 7:
1086 divided by 873 is 1 with a remainder of 213.
Use 1 as the next digit of our solution. 
Result so far: 9021.0
Subtracting 873 from 1086 leaves us with 213.
Take the next digit (4) from the dividend and append it to 213, then repeat: 2134 / 873

Advancing to step 8:
2134 divided by 873 is 2 with a remainder of 388.
Record the quotient 2 as the next digit in the result. 
Result so far: 90212.0
If we subtract 1746 from 2134, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Moving on to step 9:
873 can be fit into 3880 4 times, resulting in a remainder of 388.
Write down 4 as next digit of the result. 
Result so far: 90212.4
If we subtract 3492 from 3880, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Advancing to step 10:
If we divide 3880 by 873, we get 4 and a remainder of 388.
Record the quotient 4 as the next digit in the result. 
Result so far: 90212.44
If we subtract 3492 from 3880, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

The final result is 90212.44 with a remainder of 0.388.