1297790 divided by 77 
Let's see how many times 77 fits into 1297790.

Moving on to step 1:
The number 77 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 77

On to step 2:
If we divide 12 by 77, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 77

Going ahead to step 3:
When dividing 129 by 77, we get 1 with a remainder of 52.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 77 from 129 leaves us with 52.
Append the next digit (7) from the dividend to 52 and continue with: 527 / 77

On to step 4:
When dividing 527 by 77, we get 6 with a remainder of 65.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtract 462 from 527 to get 65.
Bring next digit (7) of the dividend behind the 65 and repeat the process: 657 / 77

Advancing to step 5:
If we divide 657 by 77, we get 8 and a remainder of 41.
Use 8 as the next digit of our solution. 
Result so far: 168.0
If we take 616 away from 657, we end up with 41.
Bring next digit (9) of the dividend behind the 41 and repeat the process: 419 / 77

On to step 6:
When dividing 419 by 77, we get 5 with a remainder of 34.
Record the quotient 5 as the next digit in the result. 
Result so far: 1685.0
Deduct 385 from 419 and we're left with 34.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 77

Let's proceed to step 7:
The number 77 fits into 340 4 times, leaving a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 16854.0
Subtract 308 from 340 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 8:
77 goes into 320 4 times with a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 16854.4
If we subtract 308 from 320, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
The number 77 fits into 120 1 times, leaving a remainder of 43.
The next digit of our result is 1. 
Result so far: 16854.41
The remainder is 43 after subtracting 77 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 10:
430 divided by 77 is 5 with a remainder of 45.
The next digit of our result is 5. 
Result so far: 16854.415
Subtract 385 from 430 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 11:
77 can be fit into 450 5 times, resulting in a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 16854.4155
Deduct 385 from 450 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 16854.4155 with a remainder of 0.00065.