59159031 ÷ 645 
Let's see how many times 645 fits into 59159031.

Going ahead to step 1:
5 divided by 645 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 645

Advancing to step 2:
59 divided by 645 is 0 with a remainder of 59.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 59 leaves us with 59.
Include the next digit (1) from the dividend after 59, then repeat: 591 / 645

Step 3:
591 divided by 645 is 0 with a remainder of 591.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 591 to get 591.
Take the next digit (5) from the dividend and append it to 591, then repeat: 5915 / 645

Let's proceed to step 4:
645 can be fit into 5915 9 times, resulting in a remainder of 110.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 5805 from 5915, we get 110.
Fetch the next digit (9) from the dividend, attach it to 110 and continue: 1109 / 645

Moving on to step 5:
When dividing 1109 by 645, we get 1 with a remainder of 464.
Put 1 as the next digit of the answer. 
Result so far: 91.0
If we subtract 645 from 1109, we get 464.
Take the next digit (0) from the dividend and append it to 464, then repeat: 4640 / 645

On to step 6:
4640 divided by 645 is 7 with a remainder of 125.
Record the quotient 7 as the next digit in the result. 
Result so far: 917.0
If we subtract 4515 from 4640, we get 125.
Bring next digit (3) of the dividend behind the 125 and repeat the process: 1253 / 645

Advancing to step 7:
1253 divided by 645 is 1 with a remainder of 608.
The number 1 becomes the next digit in our result. 
Result so far: 9171.0
Subtracting 645 from 1253 leaves us with 608.
Grab the next digit (1) from the dividend, add it to 608, then carry on: 6081 / 645

Going ahead to step 8:
645 can be fit into 6081 9 times, resulting in a remainder of 276.
Record the quotient 9 as the next digit in the result. 
Result so far: 91719.0
Subtracting 5805 from 6081 leaves us with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Advancing to step 9:
If we divide 2760 by 645, we get 4 and a remainder of 180.
Write down 4 as next digit of the result. 
Result so far: 91719.4
Subtracting 2580 from 2760 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 10:
When dividing 1800 by 645, we get 2 with a remainder of 510.
Write down 2 as next digit of the result. 
Result so far: 91719.42
Subtract 1290 from 1800 to get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 11:
645 goes into 5100 7 times with a remainder of 585.
The number 7 becomes the next digit in our result. 
Result so far: 91719.427
The remainder is 585 after subtracting 4515 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Advancing to step 12:
If we divide 5850 by 645, we get 9 and a remainder of 45.
The number 9 becomes the next digit in our result. 
Result so far: 91719.4279
If we take 5805 away from 5850, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 13:
450 divided by 645 is 0 with a remainder of 450.
The next digit of our result is 0. 
Result so far: 91719.4279
The remainder is 450 after subtracting 0 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 14:
645 goes into 4500 6 times with a remainder of 630.
The next digit of our result is 6. 
Result so far: 91719.427906
If we take 3870 away from 4500, we end up with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Moving on to step 15:
645 goes into 6300 9 times with a remainder of 495.
The number 9 becomes the next digit in our result. 
Result so far: 91719.4279069
If we take 5805 away from 6300, we end up with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Let's proceed to step 16:
The number 645 fits into 4950 7 times, leaving a remainder of 435.
Write down 7 as next digit of the result. 
Result so far: 91719.42790697
Deduct 4515 from 4950 and we're left with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

After the division, we end up with 91719.42790697 and a remainder of 4.35e-07.