77970173 ÷ 381 
We're looking to find how many times 381 goes into 77970173.

Advancing to step 1:
7 divided by 381 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 381

Step 2:
381 can be fit into 77 0 times, resulting in a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Grab the next digit (9) from the dividend, add it to 77, then carry on: 779 / 381

Going ahead to step 3:
779 divided by 381 is 2 with a remainder of 17.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 762 from 779 to get 17.
Bring next digit (7) of the dividend behind the 17 and repeat the process: 177 / 381

Moving on to step 4:
When dividing 177 by 381, we get 0 with a remainder of 177.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtracting 0 from 177 leaves us with 177.
Take the next digit (0) from the dividend and append it to 177, then repeat: 1770 / 381

On to step 5:
381 goes into 1770 4 times with a remainder of 246.
Use 4 as the next digit of our solution. 
Result so far: 204.0
Subtracting 1524 from 1770 leaves us with 246.
Grab the next digit (1) from the dividend, add it to 246, then carry on: 2461 / 381

On to step 6:
381 can be fit into 2461 6 times, resulting in a remainder of 175.
Use 6 as the next digit of our solution. 
Result so far: 2046.0
If we subtract 2286 from 2461, we get 175.
Bring next digit (7) of the dividend behind the 175 and repeat the process: 1757 / 381

On to step 7:
381 can be fit into 1757 4 times, resulting in a remainder of 233.
The next digit of our result is 4. 
Result so far: 20464.0
Subtracting 1524 from 1757 leaves us with 233.
Fetch the next digit (3) from the dividend, attach it to 233 and continue: 2333 / 381

Going ahead to step 8:
The number 381 fits into 2333 6 times, leaving a remainder of 47.
The number 6 becomes the next digit in our result. 
Result so far: 204646.0
Subtract 2286 from 2333 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 9:
When dividing 470 by 381, we get 1 with a remainder of 89.
Write down 1 as next digit of the result. 
Result so far: 204646.1
Deduct 381 from 470 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

On to step 10:
When dividing 890 by 381, we get 2 with a remainder of 128.
The number 2 becomes the next digit in our result. 
Result so far: 204646.12
The remainder is 128 after subtracting 762 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 11:
1280 divided by 381 is 3 with a remainder of 137.
Use 3 as the next digit of our solution. 
Result so far: 204646.123
Subtracting 1143 from 1280 leaves us with 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Advancing to step 12:
When dividing 1370 by 381, we get 3 with a remainder of 227.
Put 3 as the next digit of the answer. 
Result so far: 204646.1233
Subtracting 1143 from 1370 leaves us with 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

The final outcome is 204646.1233, with a leftover of 0.00227.