We divide 7864485 by 770
Our goal is to divide 7864485 by 770.

Step 1:
770 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 770

Advancing to step 2:
78 divided by 770 is 0 with a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Grab the next digit (6) from the dividend, add it to 78, then carry on: 786 / 770

Step 3:
If we divide 786 by 770, we get 1 and a remainder of 16.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 770 from 786 to get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 770

Moving on to step 4:
If we divide 164 by 770, we get 0 and a remainder of 164.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 164 and we're left with 164.
Append the next digit (4) from the dividend to 164 and continue with: 1644 / 770

Step 5:
If we divide 1644 by 770, we get 2 and a remainder of 104.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
Subtract 1540 from 1644 to get 104.
Fetch the next digit (8) from the dividend, attach it to 104 and continue: 1048 / 770

Let's proceed to step 6:
If we divide 1048 by 770, we get 1 and a remainder of 278.
Use 1 as the next digit of our solution. 
Result so far: 1021.0
If we take 770 away from 1048, we end up with 278.
Grab the next digit (5) from the dividend, add it to 278, then carry on: 2785 / 770

Step 7:
770 goes into 2785 3 times with a remainder of 475.
Put 3 as the next digit of the answer. 
Result so far: 10213.0
Subtracting 2310 from 2785 leaves us with 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Step 8:
The number 770 fits into 4750 6 times, leaving a remainder of 130.
The next digit of our result is 6. 
Result so far: 10213.6
Subtracting 4620 from 4750 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 9:
The number 770 fits into 1300 1 times, leaving a remainder of 530.
Write down 1 as next digit of the result. 
Result so far: 10213.61
Deduct 770 from 1300 and we're left with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Let's proceed to step 10:
5300 divided by 770 is 6 with a remainder of 680.
Put 6 as the next digit of the answer. 
Result so far: 10213.616
If we subtract 4620 from 5300, we get 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Going ahead to step 11:
When dividing 6800 by 770, we get 8 with a remainder of 640.
Write down 8 as next digit of the result. 
Result so far: 10213.6168
Subtract 6160 from 6800 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Step 12:
The number 770 fits into 6400 8 times, leaving a remainder of 240.
Put 8 as the next digit of the answer. 
Result so far: 10213.61688
Subtract 6160 from 6400 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The final result is 10213.61688 with a remainder of 0.00024.