38778780 divided by 645 
We want to figure out the number of times 38778780 can be divided by 645.

Let's proceed to step 1:
The number 645 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 645

Going ahead to step 2:
The number 645 fits into 38 0 times, leaving a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 38, we end up with 38.
Bring next digit (7) of the dividend behind the 38 and repeat the process: 387 / 645

Moving on to step 3:
If we divide 387 by 645, we get 0 and a remainder of 387.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 387, we get 387.
Append the next digit (7) from the dividend to 387 and continue with: 3877 / 645

Advancing to step 4:
645 can be fit into 3877 6 times, resulting in a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 7 after subtracting 3870 from 3877.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 645

Moving on to step 5:
When dividing 78 by 645, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 60.0
Subtracting 0 from 78 leaves us with 78.
Include the next digit (7) from the dividend after 78, then repeat: 787 / 645

Moving on to step 6:
If we divide 787 by 645, we get 1 and a remainder of 142.
Use 1 as the next digit of our solution. 
Result so far: 601.0
Deduct 645 from 787 and we're left with 142.
Fetch the next digit (8) from the dividend, attach it to 142 and continue: 1428 / 645

Advancing to step 7:
1428 divided by 645 is 2 with a remainder of 138.
Record the quotient 2 as the next digit in the result. 
Result so far: 6012.0
If we take 1290 away from 1428, we end up with 138.
Bring next digit (0) of the dividend behind the 138 and repeat the process: 1380 / 645

Moving on to step 8:
When dividing 1380 by 645, we get 2 with a remainder of 90.
The next digit of our result is 2. 
Result so far: 60122.0
If we subtract 1290 from 1380, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 9:
645 goes into 900 1 times with a remainder of 255.
Use 1 as the next digit of our solution. 
Result so far: 60122.1
Subtracting 645 from 900 leaves us with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

On to step 10:
2550 divided by 645 is 3 with a remainder of 615.
Use 3 as the next digit of our solution. 
Result so far: 60122.13
Subtract 1935 from 2550 to get 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Moving on to step 11:
If we divide 6150 by 645, we get 9 and a remainder of 345.
Put 9 as the next digit of the answer. 
Result so far: 60122.139
Subtracting 5805 from 6150 leaves us with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Step 12:
645 goes into 3450 5 times with a remainder of 225.
Record the quotient 5 as the next digit in the result. 
Result so far: 60122.1395
If we take 3225 away from 3450, we end up with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Going ahead to step 13:
The number 645 fits into 2250 3 times, leaving a remainder of 315.
Record the quotient 3 as the next digit in the result. 
Result so far: 60122.13953
The remainder is 315 after subtracting 1935 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Advancing to step 14:
When dividing 3150 by 645, we get 4 with a remainder of 570.
Record the quotient 4 as the next digit in the result. 
Result so far: 60122.139534
Deduct 2580 from 3150 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Moving on to step 15:
If we divide 5700 by 645, we get 8 and a remainder of 540.
The number 8 becomes the next digit in our result. 
Result so far: 60122.1395348
If we subtract 5160 from 5700, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 16:
The number 645 fits into 5400 8 times, leaving a remainder of 240.
Use 8 as the next digit of our solution. 
Result so far: 60122.13953488
Deduct 5160 from 5400 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Our division results in 60122.13953488 with a remaining 2.4e-07.