77774641 ÷ 245 
Our goal is to divide 77774641 by 245.

Advancing to step 1:
245 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 245

Moving on to step 2:
When dividing 77 by 245, we get 0 with a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Take the next digit (7) from the dividend and append it to 77, then repeat: 777 / 245

Going ahead to step 3:
777 divided by 245 is 3 with a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 735 from 777 leaves us with 42.
Take the next digit (7) from the dividend and append it to 42, then repeat: 427 / 245

Advancing to step 4:
245 can be fit into 427 1 times, resulting in a remainder of 182.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
If we subtract 245 from 427, we get 182.
Fetch the next digit (4) from the dividend, attach it to 182 and continue: 1824 / 245

Advancing to step 5:
When dividing 1824 by 245, we get 7 with a remainder of 109.
Put 7 as the next digit of the answer. 
Result so far: 317.0
Deduct 1715 from 1824 and we're left with 109.
Bring next digit (6) of the dividend behind the 109 and repeat the process: 1096 / 245

Let's proceed to step 6:
1096 divided by 245 is 4 with a remainder of 116.
The number 4 becomes the next digit in our result. 
Result so far: 3174.0
If we take 980 away from 1096, we end up with 116.
Include the next digit (4) from the dividend after 116, then repeat: 1164 / 245

Moving on to step 7:
245 can be fit into 1164 4 times, resulting in a remainder of 184.
Record the quotient 4 as the next digit in the result. 
Result so far: 31744.0
If we take 980 away from 1164, we end up with 184.
Grab the next digit (1) from the dividend, add it to 184, then carry on: 1841 / 245

Advancing to step 8:
245 goes into 1841 7 times with a remainder of 126.
Write down 7 as next digit of the result. 
Result so far: 317447.0
If we subtract 1715 from 1841, we get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 9:
If we divide 1260 by 245, we get 5 and a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 317447.5
Subtract 1225 from 1260 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 10:
If we divide 350 by 245, we get 1 and a remainder of 105.
Put 1 as the next digit of the answer. 
Result so far: 317447.51
Deduct 245 from 350 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 11:
245 can be fit into 1050 4 times, resulting in a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 317447.514
If we subtract 980 from 1050, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 12:
700 divided by 245 is 2 with a remainder of 210.
Put 2 as the next digit of the answer. 
Result so far: 317447.5142
Deduct 490 from 700 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 13:
245 goes into 2100 8 times with a remainder of 140.
Put 8 as the next digit of the answer. 
Result so far: 317447.51428
If we take 1960 away from 2100, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 14:
245 can be fit into 1400 5 times, resulting in a remainder of 175.
Use 5 as the next digit of our solution. 
Result so far: 317447.514285
Subtracting 1225 from 1400 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

On to step 15:
If we divide 1750 by 245, we get 7 and a remainder of 35.
The next digit of our result is 7. 
Result so far: 317447.5142857
If we subtract 1715 from 1750, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 16:
If we divide 350 by 245, we get 1 and a remainder of 105.
Write down 1 as next digit of the result. 
Result so far: 317447.51428571
If we subtract 245 from 350, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

After the division, we end up with 317447.51428571 and a remainder of 1.05e-07.