We divide 77307007 by 641
We want to figure out the number of times 77307007 can be divided by 641.

On to step 1:
The number 641 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 641

Step 2:
The number 641 fits into 77 0 times, leaving a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Grab the next digit (3) from the dividend, add it to 77, then carry on: 773 / 641

Let's proceed to step 3:
641 can be fit into 773 1 times, resulting in a remainder of 132.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 641 from 773 leaves us with 132.
Bring next digit (0) of the dividend behind the 132 and repeat the process: 1320 / 641

Moving on to step 4:
If we divide 1320 by 641, we get 2 and a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 1282 from 1320 and we're left with 38.
Bring next digit (7) of the dividend behind the 38 and repeat the process: 387 / 641

Going ahead to step 5:
If we divide 387 by 641, we get 0 and a remainder of 387.
Put 0 as the next digit of the answer. 
Result so far: 120.0
Subtract 0 from 387 to get 387.
Grab the next digit (0) from the dividend, add it to 387, then carry on: 3870 / 641

Let's proceed to step 6:
3870 divided by 641 is 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 1206.0
Subtract 3846 from 3870 to get 24.
Include the next digit (0) from the dividend after 24, then repeat: 240 / 641

On to step 7:
240 divided by 641 is 0 with a remainder of 240.
Use 0 as the next digit of our solution. 
Result so far: 12060.0
If we take 0 away from 240, we end up with 240.
Include the next digit (7) from the dividend after 240, then repeat: 2407 / 641

Moving on to step 8:
If we divide 2407 by 641, we get 3 and a remainder of 484.
The next digit of our result is 3. 
Result so far: 120603.0
If we subtract 1923 from 2407, we get 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Step 9:
If we divide 4840 by 641, we get 7 and a remainder of 353.
Record the quotient 7 as the next digit in the result. 
Result so far: 120603.7
If we take 4487 away from 4840, we end up with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Step 10:
When dividing 3530 by 641, we get 5 with a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 120603.75
If we take 3205 away from 3530, we end up with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 11:
The number 641 fits into 3250 5 times, leaving a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 120603.755
If we take 3205 away from 3250, 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.

The quotient of the division is 120603.755, and the remainder is 0.0045.