72674074 divided by 645 
Our goal is to divide 72674074 by 645.

Moving on to step 1:
7 divided by 645 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 645

Moving on to step 2:
72 divided by 645 is 0 with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Include the next digit (6) from the dividend after 72, then repeat: 726 / 645

On to step 3:
645 can be fit into 726 1 times, resulting in a remainder of 81.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 645 from 726 leaves us with 81.
Bring next digit (7) of the dividend behind the 81 and repeat the process: 817 / 645

Going ahead to step 4:
645 goes into 817 1 times with a remainder of 172.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 645 from 817 to get 172.
Fetch the next digit (4) from the dividend, attach it to 172 and continue: 1724 / 645

Advancing to step 5:
If we divide 1724 by 645, we get 2 and a remainder of 434.
Record the quotient 2 as the next digit in the result. 
Result so far: 112.0
Subtracting 1290 from 1724 leaves us with 434.
Fetch the next digit (0) from the dividend, attach it to 434 and continue: 4340 / 645

Going ahead to step 6:
The number 645 fits into 4340 6 times, leaving a remainder of 470.
The next digit of our result is 6. 
Result so far: 1126.0
Subtracting 3870 from 4340 leaves us with 470.
Grab the next digit (7) from the dividend, add it to 470, then carry on: 4707 / 645

Moving on to step 7:
645 can be fit into 4707 7 times, resulting in a remainder of 192.
Record the quotient 7 as the next digit in the result. 
Result so far: 11267.0
The remainder is 192 after subtracting 4515 from 4707.
Append the next digit (4) from the dividend to 192 and continue with: 1924 / 645

Step 8:
The number 645 fits into 1924 2 times, leaving a remainder of 634.
Write down 2 as next digit of the result. 
Result so far: 112672.0
If we subtract 1290 from 1924, we get 634.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6340, and continue the process.

Going ahead to step 9:
6340 divided by 645 is 9 with a remainder of 535.
Record the quotient 9 as the next digit in the result. 
Result so far: 112672.9
The remainder is 535 after subtracting 5805 from 6340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Moving on to step 10:
5350 divided by 645 is 8 with a remainder of 190.
The number 8 becomes the next digit in our result. 
Result so far: 112672.98
The remainder is 190 after subtracting 5160 from 5350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 11:
The number 645 fits into 1900 2 times, leaving a remainder of 610.
Write down 2 as next digit of the result. 
Result so far: 112672.982
Deduct 1290 from 1900 and we're left with 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Going ahead to step 12:
If we divide 6100 by 645, we get 9 and a remainder of 295.
Put 9 as the next digit of the answer. 
Result so far: 112672.9829
If we take 5805 away from 6100, we end up with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Let's proceed to step 13:
When dividing 2950 by 645, we get 4 with a remainder of 370.
Put 4 as the next digit of the answer. 
Result so far: 112672.98294
The remainder is 370 after subtracting 2580 from 2950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 14:
645 can be fit into 3700 5 times, resulting in a remainder of 475.
The next digit of our result is 5. 
Result so far: 112672.982945
The remainder is 475 after subtracting 3225 from 3700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Moving on to step 15:
4750 divided by 645 is 7 with a remainder of 235.
Put 7 as the next digit of the answer. 
Result so far: 112672.9829457
Deduct 4515 from 4750 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 16:
The number 645 fits into 2350 3 times, leaving a remainder of 415.
Record the quotient 3 as the next digit in the result. 
Result so far: 112672.98294573
If we take 1935 away from 2350, we end up with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

The final outcome is 112672.98294573, with a leftover of 4.15e-07.