74228533 divided by 945 
The aim is to understand the frequency of 945 in 74228533.

On to step 1:
7 divided by 945 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 945

Going ahead to step 2:
If we divide 74 by 945, we get 0 and a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 74, we get 74.
Bring next digit (2) of the dividend behind the 74 and repeat the process: 742 / 945

Step 3:
742 divided by 945 is 0 with a remainder of 742.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 742 to get 742.
Take the next digit (2) from the dividend and append it to 742, then repeat: 7422 / 945

Advancing to step 4:
945 can be fit into 7422 7 times, resulting in a remainder of 807.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 6615 from 7422, we get 807.
Include the next digit (8) from the dividend after 807, then repeat: 8078 / 945

On to step 5:
The number 945 fits into 8078 8 times, leaving a remainder of 518.
The next digit of our result is 8. 
Result so far: 78.0
If we take 7560 away from 8078, we end up with 518.
Include the next digit (5) from the dividend after 518, then repeat: 5185 / 945

Step 6:
945 goes into 5185 5 times with a remainder of 460.
Record the quotient 5 as the next digit in the result. 
Result so far: 785.0
If we take 4725 away from 5185, we end up with 460.
Fetch the next digit (3) from the dividend, attach it to 460 and continue: 4603 / 945

Advancing to step 7:
The number 945 fits into 4603 4 times, leaving a remainder of 823.
The next digit of our result is 4. 
Result so far: 7854.0
Subtract 3780 from 4603 to get 823.
Append the next digit (3) from the dividend to 823 and continue with: 8233 / 945

Step 8:
If we divide 8233 by 945, we get 8 and a remainder of 673.
Put 8 as the next digit of the answer. 
Result so far: 78548.0
Subtract 7560 from 8233 to get 673.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6730, and continue the process.

Let's proceed to step 9:
945 goes into 6730 7 times with a remainder of 115.
Write down 7 as next digit of the result. 
Result so far: 78548.7
Subtract 6615 from 6730 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

On to step 10:
If we divide 1150 by 945, we get 1 and a remainder of 205.
Record the quotient 1 as the next digit in the result. 
Result so far: 78548.71
If we subtract 945 from 1150, we get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Advancing to step 11:
If we divide 2050 by 945, we get 2 and a remainder of 160.
Write down 2 as next digit of the result. 
Result so far: 78548.712
Subtracting 1890 from 2050 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 12:
1600 divided by 945 is 1 with a remainder of 655.
The number 1 becomes the next digit in our result. 
Result so far: 78548.7121
The remainder is 655 after subtracting 945 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6550, and continue the process.

Going ahead to step 13:
945 can be fit into 6550 6 times, resulting in a remainder of 880.
Use 6 as the next digit of our solution. 
Result so far: 78548.71216
If we subtract 5670 from 6550, we get 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8800, and continue the process.

Moving on to step 14:
945 goes into 8800 9 times with a remainder of 295.
The number 9 becomes the next digit in our result. 
Result so far: 78548.712169
If we take 8505 away from 8800, 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.

Moving on to step 15:
945 goes into 2950 3 times with a remainder of 115.
Put 3 as the next digit of the answer. 
Result so far: 78548.7121693
The remainder is 115 after subtracting 2835 from 2950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Advancing to step 16:
The number 945 fits into 1150 1 times, leaving a remainder of 205.
The next digit of our result is 1. 
Result so far: 78548.71216931
If we take 945 away from 1150, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

The quotient of the division is 78548.71216931, and the remainder is 2.05e-07.