We're dividing 73646213 by 645 
We want to divide 73646213 by 645.

Going ahead to step 1:
When dividing 7 by 645, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 645

Moving on to step 2:
When dividing 73 by 645, we get 0 with a remainder of 73.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 73, we end up with 73.
Bring next digit (6) of the dividend behind the 73 and repeat the process: 736 / 645

Going ahead to step 3:
When dividing 736 by 645, we get 1 with a remainder of 91.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 645 from 736 leaves us with 91.
Grab the next digit (4) from the dividend, add it to 91, then carry on: 914 / 645

Moving on to step 4:
When dividing 914 by 645, we get 1 with a remainder of 269.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we subtract 645 from 914, we get 269.
Take the next digit (6) from the dividend and append it to 269, then repeat: 2696 / 645

Step 5:
When dividing 2696 by 645, we get 4 with a remainder of 116.
Write down 4 as next digit of the result. 
Result so far: 114.0
If we take 2580 away from 2696, we end up with 116.
Include the next digit (2) from the dividend after 116, then repeat: 1162 / 645

Advancing to step 6:
1162 divided by 645 is 1 with a remainder of 517.
Put 1 as the next digit of the answer. 
Result so far: 1141.0
The remainder is 517 after subtracting 645 from 1162.
Append the next digit (1) from the dividend to 517 and continue with: 5171 / 645

Moving on to step 7:
645 can be fit into 5171 8 times, resulting in a remainder of 11.
Use 8 as the next digit of our solution. 
Result so far: 11418.0
The remainder is 11 after subtracting 5160 from 5171.
Grab the next digit (3) from the dividend, add it to 11, then carry on: 113 / 645

Advancing to step 8:
If we divide 113 by 645, we get 0 and a remainder of 113.
The next digit of our result is 0. 
Result so far: 114180.0
If we take 0 away from 113, we end up with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

On to step 9:
The number 645 fits into 1130 1 times, leaving a remainder of 485.
Record the quotient 1 as the next digit in the result. 
Result so far: 114180.1
If we subtract 645 from 1130, we get 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Moving on to step 10:
645 can be fit into 4850 7 times, resulting in a remainder of 335.
Use 7 as the next digit of our solution. 
Result so far: 114180.17
Subtract 4515 from 4850 to 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.

Going ahead to step 11:
645 goes into 3350 5 times with a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 114180.175
If we take 3225 away from 3350, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 12:
645 goes into 1250 1 times with a remainder of 605.
The next digit of our result is 1. 
Result so far: 114180.1751
The remainder is 605 after subtracting 645 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

Moving on to step 13:
When dividing 6050 by 645, we get 9 with a remainder of 245.
The next digit of our result is 9. 
Result so far: 114180.17519
The remainder is 245 after subtracting 5805 from 6050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Advancing to step 14:
2450 divided by 645 is 3 with a remainder of 515.
Put 3 as the next digit of the answer. 
Result so far: 114180.175193
Subtracting 1935 from 2450 leaves us with 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Let's proceed to step 15:
When dividing 5150 by 645, we get 7 with a remainder of 635.
Write down 7 as next digit of the result. 
Result so far: 114180.1751937
Subtracting 4515 from 5150 leaves us with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

On to step 16:
When dividing 6350 by 645, we get 9 with a remainder of 545.
The number 9 becomes the next digit in our result. 
Result so far: 114180.17519379
Subtract 5805 from 6350 to get 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

After the division, we end up with 114180.17519379 and a remainder of 5.45e-07.