Let's divide 66611970 by 778
We want to divide 66611970 by 778.

Moving on to step 1:
778 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 778

Moving on to step 2:
66 divided by 778 is 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Bring next digit (6) of the dividend behind the 66 and repeat the process: 666 / 778

Let's proceed to step 3:
The number 778 fits into 666 0 times, leaving a remainder of 666.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 666 leaves us with 666.
Grab the next digit (1) from the dividend, add it to 666, then carry on: 6661 / 778

Going ahead to step 4:
The number 778 fits into 6661 8 times, leaving a remainder of 437.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 437 after subtracting 6224 from 6661.
Take the next digit (1) from the dividend and append it to 437, then repeat: 4371 / 778

Going ahead to step 5:
The number 778 fits into 4371 5 times, leaving a remainder of 481.
Write down 5 as next digit of the result. 
Result so far: 85.0
Deduct 3890 from 4371 and we're left with 481.
Take the next digit (9) from the dividend and append it to 481, then repeat: 4819 / 778

Moving on to step 6:
When dividing 4819 by 778, we get 6 with a remainder of 151.
The number 6 becomes the next digit in our result. 
Result so far: 856.0
If we subtract 4668 from 4819, we get 151.
Include the next digit (7) from the dividend after 151, then repeat: 1517 / 778

Let's proceed to step 7:
778 goes into 1517 1 times with a remainder of 739.
Use 1 as the next digit of our solution. 
Result so far: 8561.0
If we subtract 778 from 1517, we get 739.
Take the next digit (0) from the dividend and append it to 739, then repeat: 7390 / 778

Advancing to step 8:
The number 778 fits into 7390 9 times, leaving a remainder of 388.
Put 9 as the next digit of the answer. 
Result so far: 85619.0
Subtracting 7002 from 7390 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 9:
3880 divided by 778 is 4 with a remainder of 768.
Record the quotient 4 as the next digit in the result. 
Result so far: 85619.4
Deduct 3112 from 3880 and we're left with 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

Advancing to step 10:
778 can be fit into 7680 9 times, resulting in a remainder of 678.
Put 9 as the next digit of the answer. 
Result so far: 85619.49
Subtract 7002 from 7680 to get 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Moving on to step 11:
778 can be fit into 6780 8 times, resulting in a remainder of 556.
Use 8 as the next digit of our solution. 
Result so far: 85619.498
The remainder is 556 after subtracting 6224 from 6780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Advancing to step 12:
5560 divided by 778 is 7 with a remainder of 114.
Use 7 as the next digit of our solution. 
Result so far: 85619.4987
If we subtract 5446 from 5560, we get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Let's proceed to step 13:
1140 divided by 778 is 1 with a remainder of 362.
The number 1 becomes the next digit in our result. 
Result so far: 85619.49871
If we subtract 778 from 1140, we get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Going ahead to step 14:
778 can be fit into 3620 4 times, resulting in a remainder of 508.
The next digit of our result is 4. 
Result so far: 85619.498714
Subtracting 3112 from 3620 leaves us with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Moving on to step 15:
The number 778 fits into 5080 6 times, leaving a remainder of 412.
Record the quotient 6 as the next digit in the result. 
Result so far: 85619.4987146
If we subtract 4668 from 5080, we get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Moving on to step 16:
4120 divided by 778 is 5 with a remainder of 230.
Use 5 as the next digit of our solution. 
Result so far: 85619.49871465
Deduct 3890 from 4120 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

In conclusion, the division gives 85619.49871465 with a balance of 2.3e-07.