We divide 128602 by 77
Let's see how many times 77 fits into 128602.

Going ahead to step 1:
If we divide 1 by 77, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 77

Going ahead to step 2:
77 goes into 12 0 times with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 77

On to step 3:
77 goes into 128 1 times with a remainder of 51.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 77 away from 128, we end up with 51.
Take the next digit (6) from the dividend and append it to 51, then repeat: 516 / 77

On to step 4:
The number 77 fits into 516 6 times, leaving a remainder of 54.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 462 from 516, we get 54.
Take the next digit (0) from the dividend and append it to 54, then repeat: 540 / 77

Step 5:
The number 77 fits into 540 7 times, leaving a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 167.0
If we subtract 539 from 540, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 77

On to step 6:
77 can be fit into 12 0 times, resulting in a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 1670.0
Deduct 0 from 12 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
When dividing 120 by 77, we get 1 with a remainder of 43.
The next digit of our result is 1. 
Result so far: 1670.1
Subtract 77 from 120 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 8:
77 can be fit into 430 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 1670.15
If we take 385 away from 430, we end up with 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 9:
When dividing 450 by 77, we get 5 with a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 1670.155
If we take 385 away from 450, we end up 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 quotient of the division is 1670.155, and the remainder is 0.0065.