636850 ÷ 77 
We want to figure out the number of times 636850 can be divided by 77.

Moving on to step 1:
The number 77 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 77

Advancing to step 2:
77 can be fit into 63 0 times, resulting in a remainder of 63.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Take the next digit (6) from the dividend and append it to 63, then repeat: 636 / 77

On to step 3:
77 goes into 636 8 times with a remainder of 20.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 616 from 636 to get 20.
Grab the next digit (8) from the dividend, add it to 20, then carry on: 208 / 77

On to step 4:
If we divide 208 by 77, we get 2 and a remainder of 54.
Put 2 as the next digit of the answer. 
Result so far: 82.0
Subtract 154 from 208 to get 54.
Append the next digit (5) from the dividend to 54 and continue with: 545 / 77

Moving on to step 5:
The number 77 fits into 545 7 times, leaving a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 827.0
If we take 539 away from 545, we end up with 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 77

On to step 6:
The number 77 fits into 60 0 times, leaving a remainder of 60.
The next digit of our result is 0. 
Result so far: 8270.0
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 7:
If we divide 600 by 77, we get 7 and a remainder of 61.
The number 7 becomes the next digit in our result. 
Result so far: 8270.7
If we take 539 away from 600, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 8:
610 divided by 77 is 7 with a remainder of 71.
The next digit of our result is 7. 
Result so far: 8270.77
If we subtract 539 from 610, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final outcome is 8270.77, with a leftover of 0.071.