We look at the division of 79629557 by 645 
We want to divide 79629557 by 645.

Moving on to step 1:
The number 645 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 645

Moving on to step 2:
If we divide 79 by 645, we get 0 and a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 79 after subtracting 0 from 79.
Fetch the next digit (6) from the dividend, attach it to 79 and continue: 796 / 645

Step 3:
The number 645 fits into 796 1 times, leaving a remainder of 151.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 645 from 796 leaves us with 151.
Take the next digit (2) from the dividend and append it to 151, then repeat: 1512 / 645

On to step 4:
645 can be fit into 1512 2 times, resulting in a remainder of 222.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 1290 from 1512, we get 222.
Fetch the next digit (9) from the dividend, attach it to 222 and continue: 2229 / 645

Advancing to step 5:
645 goes into 2229 3 times with a remainder of 294.
Use 3 as the next digit of our solution. 
Result so far: 123.0
Subtracting 1935 from 2229 leaves us with 294.
Bring next digit (5) of the dividend behind the 294 and repeat the process: 2945 / 645

Moving on to step 6:
When dividing 2945 by 645, we get 4 with a remainder of 365.
Put 4 as the next digit of the answer. 
Result so far: 1234.0
If we take 2580 away from 2945, we end up with 365.
Append the next digit (5) from the dividend to 365 and continue with: 3655 / 645

On to step 7:
The number 645 fits into 3655 5 times, leaving a remainder of 430.
Use 5 as the next digit of our solution. 
Result so far: 12345.0
Deduct 3225 from 3655 and we're left with 430.
Take the next digit (7) from the dividend and append it to 430, then repeat: 4307 / 645

Advancing to step 8:
4307 divided by 645 is 6 with a remainder of 437.
Record the quotient 6 as the next digit in the result. 
Result so far: 123456.0
Subtract 3870 from 4307 to get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Let's proceed to step 9:
645 can be fit into 4370 6 times, resulting in a remainder of 500.
Use 6 as the next digit of our solution. 
Result so far: 123456.6
The remainder is 500 after subtracting 3870 from 4370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Going ahead to step 10:
645 goes into 5000 7 times with a remainder of 485.
Use 7 as the next digit of our solution. 
Result so far: 123456.67
The remainder is 485 after subtracting 4515 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

On to step 11:
When dividing 4850 by 645, we get 7 with a remainder of 335.
Use 7 as the next digit of our solution. 
Result so far: 123456.677
If we subtract 4515 from 4850, we get 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

The final result is 123456.677 with a remainder of 0.0335.