77663640 divided by 526 
We want to figure out the number of times 77663640 can be divided by 526.

On to step 1:
When dividing 7 by 526, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 526

Let's proceed to step 2:
The number 526 fits into 77 0 times, leaving a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Include the next digit (6) from the dividend after 77, then repeat: 776 / 526

Advancing to step 3:
526 can be fit into 776 1 times, resulting in a remainder of 250.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 526 from 776 leaves us with 250.
Append the next digit (6) from the dividend to 250 and continue with: 2506 / 526

On to step 4:
2506 divided by 526 is 4 with a remainder of 402.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 2104 from 2506 to get 402.
Append the next digit (3) from the dividend to 402 and continue with: 4023 / 526

Going ahead to step 5:
526 goes into 4023 7 times with a remainder of 341.
Record the quotient 7 as the next digit in the result. 
Result so far: 147.0
Subtract 3682 from 4023 to get 341.
Include the next digit (6) from the dividend after 341, then repeat: 3416 / 526

Advancing to step 6:
526 goes into 3416 6 times with a remainder of 260.
The next digit of our result is 6. 
Result so far: 1476.0
The remainder is 260 after subtracting 3156 from 3416.
Bring next digit (4) of the dividend behind the 260 and repeat the process: 2604 / 526

On to step 7:
The number 526 fits into 2604 4 times, leaving a remainder of 500.
The number 4 becomes the next digit in our result. 
Result so far: 14764.0
Deduct 2104 from 2604 and we're left with 500.
Take the next digit (0) from the dividend and append it to 500, then repeat: 5000 / 526

Moving on to step 8:
If we divide 5000 by 526, we get 9 and a remainder of 266.
Put 9 as the next digit of the answer. 
Result so far: 147649.0
Deduct 4734 from 5000 and we're left with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Going ahead to step 9:
526 can be fit into 2660 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 147649.5
Subtract 2630 from 2660 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
526 can be fit into 300 0 times, resulting in a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 147649.5
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 11:
526 can be fit into 3000 5 times, resulting in a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 147649.505
Subtract 2630 from 3000 to get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 12:
If we divide 3700 by 526, we get 7 and a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 147649.5057
Deduct 3682 from 3700 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 13:
The number 526 fits into 180 0 times, leaving a remainder of 180.
Write down 0 as next digit of the result. 
Result so far: 147649.5057
Subtract 0 from 180 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 14:
526 goes into 1800 3 times with a remainder of 222.
Put 3 as the next digit of the answer. 
Result so far: 147649.505703
The remainder is 222 after subtracting 1578 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

On to step 15:
2220 divided by 526 is 4 with a remainder of 116.
Use 4 as the next digit of our solution. 
Result so far: 147649.5057034
The remainder is 116 after subtracting 2104 from 2220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Step 16:
If we divide 1160 by 526, we get 2 and a remainder of 108.
Put 2 as the next digit of the answer. 
Result so far: 147649.50570342
Subtract 1052 from 1160 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The final outcome is 147649.50570342, with a leftover of 1.08e-07.